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Chemical Equilibrium — JEE Main & Advanced Chemistry PYQs

314 previous year questions from Chemical Equilibrium with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

314 questionsChemistrySolutions on every page
1

Consider the following reactions in which all the reactants and products are present in gaseous state 2xy x₂ + y₂ K₁ = 2.5 10^5 xy + 1 2 z₂ xyz K₂ = 5 10⁻³ The value of K₃ for the

JEE Main 2026 Solution View → 2

Solid carbon, CaO and CaCO₃ are mixed and allowed to attain equilibrium at T K. CaCO ₃(s) CaO (s) + CO ₂(g) K_ p₁ = 0.08 atm C (s) + CO ₂(g) 2 CO (g) K_ p₂ = 2 atm The partial pres

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In a closed flask at 600 K, one mole of X₂ Y₄ (g) attains equilibrium as given below : X ₂ Y ₄(g) 2 XY ₂(g) At equilibrium, 75 % X₂ Y₄ (g) was dissociated and the total pressure is

JEE Main 2026 Solution View → 4

One mole each of He and A(g) are taken in a 10 L closed flask and heated to 400 K to establish the following equilibrium. A(g) B(g) . K_c for this reaction at 400 K is 4.0 . The pa

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The reaction A(g) B(g) + C(g) was initiated with the amount ' a ' of A(g) . At equilibrium it is found that the amount of A(g) remaining is (a - x) at a total pressure of p . The e

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The values of pressure equilibrium constant recorded at different temperatures for the following equilibrium reaction have been given below A(g) B(g) + C(g) 1 T ( K ⁻¹) ₁₀ K_p 0.05

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For the following reaction at 50° C and at 2 atm pressure, 2N₂O₅(g) 2N₂O₄(g)+O₂(g) N₂O₅ is 50 % dissociated. The magnitude of standard free energy change at this temperature is x .

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At T(K) , the equilibrium constant of A₂(g) + B₂(g) C(g) is 2.7 10⁻⁵ . What is the equilibrium constant for 1 3 A₂(g) + 1 3 B₂(g) 1 3 C(g) at the same temperature?

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Observe the following equilibrium in a 1 L flask. A ( ~g ) B ( ~g ) At T ( K ) , the equilibrium concentrations of A and B are 0.5 M and 0.375 M respectively. 0.1 moles of A is add

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Consider the following gaseous equilibrium in a closed container of volume ' V ' at T ( K ) . P ₂( ~g )+ Q ₂( ~g ) 2 PQ ( g ) 2 moles each of P ₂( ~g ), Q ₂( ~g ) and PQ ( g ) are

JEE Main 2026 Solution View → 11

X ₂( ~g )+ Y ₂( ~g ) 2 Z ( g ) X ₂( ~g ) and Y ₂( ~g ) are added to a 1 L flask and it is found that the system attains the above equilibrium at T ( K ) with the number of moles of

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Consider the general reaction given below at 400 K x ~A ( ~g ) y ~B ( ~g ) The values of K _ p and K _ c are studied under the same condition of temperature but variation in x and

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For the following gas phase equilibrium reaction at constant temperature, NH ₃( ~g ) 1 / 2 ~N ₂( ~g )+3 / 2 H ₂( ~g ) if the total pressure is 3 ~atm and the pressure equilibrium c

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Dissociation of a gas A ₂ takes place according to the following chemical reaction. At equilibrium, the total pressure is 1 bar at 300 K. A ₂( ~g ) 2 ~A ( ~g ) The standard Gibbs e

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For the reaction, N ₂ O ₄ 2 NO ₂ , graph is plotted as shown below. Identify correct statements. A. Standard free energy change for the reaction is -5.40 ~kJ ~mol ⁻¹ . B. As G ^ in

JEE Main 2026 Solution View → 16

Given below are two statements Statement I : A catalyst cannot alter the equilibrium constant ( K _ c ) of the reaction, temperature remaining constant Statement II : A homogenous

JEE Main 2025 Solution View → 17

In the following system, PCl ₅( ~g ) PCl ₃( ~g )+ Cl ₂( ~g ) at equilibrium, upon addition of xenon gas at constant T & p , the concentration of

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Consider the following chemical equilibrium of the gas phase reaction at a constant temperature : A ( ~g ) B ( ~g )+ C ( ~g ) If p being the total pressure, K_p is the pressure equ

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Consider the following equilibrium, ( CO ( g )+2 H ₂( g ) CH ₃ OH ( g ) ) 0.1 mol of CO along with a catalyst is present in a (2 dm ^3 ) flask maintained at 500 K. Hydrogen is intr

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Consider the equilibrium CO ( ~g )+3 H ₂( ~g ) CH ₄( ~g )+ H ₂ O ( ~g ) If the pressure applied over the system increases by two fold at constant temperature then (A) Concentration

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At temperature T, compound ( AB _ 2( ~g ) ) dissociates as ( AB _ 2( ~g ) AB _ ( g ) + 1 2 ~B _ 2( ~g ) ) having degree of dissociation (x ) (small compared to unity). The correct

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For the reaction, H ₂( ~g )+ I ₂( ~g ) 2 HI ( ~g ) Attainment of equillibrium is predicted correctly by :

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37.8 ~g ~N ₂ O ₅ was taken in a 1 L reaction vessel and allowed to undergo the following reaction at 500 K 2 ~N ₂ O _ 5( ~g ) 2 ~N ₂ O _ 4( ~g ) + O _ 2( ~g ) The total pressure at

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Consider the reaction X ₂ Y ( ~g )= X ₂( ~g )+ 1 2 Y ₂( ~g ) The equation representing correct relationship between the degree of dissociation (x) of X ₂ Y ( g ) with its equilibri

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A vessel at 1000 K contains CO ₂ with a pressure of 0.5 atm . Some of CO ₂ is converted into CO on addition of graphite. If total pressure at equilibrium is 0.8 atm , then Kp is :

JEE Main 2025 Solution View → 26

The equilibrium ( Cr ₂ O ₇²⁻ 2 CrO ₄²⁻ ) is shifted to the right in :

JEE Main 2024 Solution View → 27

For the given hypothetical reactions, the equilibrium constants are as follows : ( aligned & X Y ; K ₁=1.0 & Y Z ; K ₂=2.0 & Z W ; K ₃=4.0 aligned ) The equilibrium constant for th

JEE Main 2024 Solution View → 28

The ratio ( K_P K_C ) for the reaction : ( CO _ ( g ) + 1 2 O _ 2( ~g ) CO _ 2( ~g ) ) is :

JEE Main 2024 Solution View → 29

At (-20^ C ) and (1 ~atm ) pressure, a cylinder is filled with equal number of ( H ₂, I ₂ ) and ( HI ) molecules for the reaction ( H ₂( ~g )+ I ₂( ~g ) 2 HI ( g ) ), the ( K _ p )

JEE Main 2024 Solution View → 30

The following reaction occurs in the Blast furnance where iron ore is reduced to iron metal ( Fe ₂ O _ 3( ~s ) +3 CO _ ( g ) Fe _ ( l ) +3 CO _ 2( ~g ) ) Using the Le-chatelier's p

JEE Main 2024 Solution View → 31

The equilibrium constant for the reaction ( SO ₃( g ) SO ₂( ~g )+ 1 2 O ₂( ~g ) ) is ( K _ c =4.9 10⁻² ). The value of ( K _ c ) for the reaction given below is (2 SO ₂( ~g )+ O ₂(

JEE Main 2024 Solution View → 32

A g ⇌ B g + C 2 g . The correct relationship between K P , α and equilibrium pressure P is

JEE Main 2024 Solution View → 33

For the given reaction, choose the correct expression of K C from the following: Fe 3 + aq + SCN - aq ⇌ ( FeSCN ) 2 + aq

JEE Main 2024 Solution View → 34

The following concentrations were observed at 500 K for the formation of NH 3 from N 2 and H 2 . At equilibrium : N 2 = 2 × 10 - 2 M , H 2 = 3 × 10 - 2 M and NH 3 = 1 . 5 × 10 - 2

JEE Main 2024 Solution View → 35

For the reaction N 2 O 4 ( g ) ⇌ 2 NO 2 ( g ) , K p = 0 . 492 atm at 300 K . K c for the reaction at same temperature is _ _ _ _ _ _ × 10 - 2 . (Given : R = 0 . 082 L atm mol - 1 K

JEE Main 2024 Solution View → 36

4 . 5 moles each of hydrogen and iodine is heated in a sealed ten litre vessel.At equilibrium, 3 moles of HI were found. The equilibrium constant for H 2 g + I 2 g ⇌ 2 HI g i

JEE Main 2023 Solution View → 37

A mixture of one mole of H 2 O and 1 mole of CO is taken in a 10 litre container and heated to 725 K . At equilibrium 40 % of water by mass reacts with carbon monoxide according to

JEE Main 2023 Solution View → 38

The number of correct statement/s involving equilibria in physical processes from the following is ________ (A) Equilibrium is possible only in a closed system at a given temperatu

JEE Main 2023 Solution View → 39

The equilibrium composition for the reaction PCl 3 + Cl 2 ⇌ PCl 5 at 298 K is given below: PCl 3 eq = 0 . 2 mol L - 1 , Cl 2 eq = 0 . 1 mol L - 1 , PCl 5 eq = 0 . 40 mol L -

JEE Main 2023 Solution View → 40

For a concentrated solution of a weak electrolyte ( K eq = equilibrium constant) A 2 B 3 of concentration ‘ C ’ , the degree of dissociation ‘ α ’ is

JEE Main 2023 Solution View → 41

The effect of addition of helium gas to the following reaction in equilibrium state at constant volume, is : PCI 5 (   g ) ⇌ PCl 3 (   g ) + Cl 2 (   g )

JEE Main 2023 Solution View → 42

(i) X ( g ) ⇌ Y ( g ) + Z ( g ) K p 1 = 3 (ii) A ( g ) ⇌ 2 B ( g ) K p 2 = 1 If the degree of dissociation and initial concentration of both the reactants X ( g ) and A

JEE Main 2023 Solution View → 43

For reaction: SO 2 ( g ) + 1 2 O 2 ( g ) ⇌ SO 3 ( g ) K P = 2 × 10 12 at 27 ° C and 1 atm pressure. The K c for the same reaction is × 10 13 . ( Nearest intege

JEE Main 2023 Solution View → 44

Consider the following equation: 2 SO 2 g + O 2 g ⇌ 2 SO 3 g , ΔH = - 190 kJ . The number of factors which will increase the yield of SO 3 at equilibrium from the follow

JEE Main 2023 Solution View → 45

At 298 K N 2 g + 3 H 2 g ⇌ 2 NH 3 g , K 1 = 4 × 10 5 N 2 g + O 2 g ⇌ 2 NO g , K 2 = 1 . 6 × 10 12 H 2 g + 1 2 O 2 g ⇌ H 2 O ( g ) , K 3 = 1 . 0 × 1

JEE Main 2023 Solution View → 46

Water decomposes at 2300 K H 2 O g → H 2 g + 1 2 O 2 g The percent of water decomposing at 2300 K and 1 bar is _____ (Nearest integer). Equilibrium constant for the reaction

JEE Main 2023 Solution View → 47

At 600 K , 2 mol of NO are mixed with 1 mol of O 2 . 2 NO g + O 2 g ⇄ 2 NO 2 g The reaction occurring as above comes to equilibrium under a total pressure of 1 atm. Analysis

JEE Main 2022 Solution View → 48

At 298 K , the equilibrium constant is 2 × 10 15 for the reaction: Cu s + 2 Ag + aq ⇌ Cu 2 + aq + 2 Ag s The equilibrium constant for the reaction 1 2 Cu 2 + aq + Ag s &

JEE Main 2022 Solution View → 49

4 . 0 moles of argon and 5 . 0 moles of PCl 5 are introduced into an evacuated flask of 100 litre capacity at 610 K . The system is allowed to equilibrate. At equilibrium, the tota

JEE Main 2022 Solution View → 50

2 NOCl g ⇌ 2 NO g + Cl 2 g In an experiment, 2 . 0 moles of NOCl was placed in a one-litre flask and the concentration of NO after equilibrium established, was found to be 0

JEE Main 2022 Solution View → 51

The standard free energy change ΔG ° for 50 % dissociation of N 2 O 4 into NO 2 at 27   ° C and 1   atm pressure is - x   J   mol - 1 . The value

JEE Main 2022 Solution View → 52

PCl 5 dissociates as PCl 5 g ⇌ PCl 3 g + Cl 2 g 5 moles of PCl 5 are placed in a 200 litre vessel which contains 2 moles of N 2 and is maintained at 600 K . The equilibrium p

JEE Main 2022 Solution View → 53

For a reaction at equilibrium A g ⇌ B g + 1 2 C g the relation between dissociation constant K , degree of dissociation α and equilibrium pressure p is given by :

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When 5 . 1 g of solid NH 4 HS is introduced into a two litre evacuated flask at 27 ° C , 20 % of the solid decomposes into gaseous ammonia and hydrogen sulphide. The K p for t

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The number of moles of NH 3 , that must be added to 2 L of 0 . 80 MAgNO 3 in order to reduce the concentration of Ag + ions to 5 . 0 × 10 - 8 M K formation for Ag NH 3 2 + = 1

JEE Main 2021 Solution View → 56

In the sulphur estimation, 0 . 471 g of an organic compound gave 1 . 44 g of barium sulfate. The percentage of sulphur in the compound is. (Nearest integer) (Atomic Mass of Ba = 13

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The reaction rate for the reaction PtCl 4 2 - + H 2 O ⇌ Pt H 2 O Cl 3 - + Cl - was measured as a function of concentrations of different species. It was observed that - d PtC

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The OH - concentration in a mixture of 5 . 0 mL of 0 . 0504 M NH 4 Cl and 2 mL of 0 . 0210 M NH 3 solution is x × 10 - 6 M . The value of x is (Nearest integer) [Given K w = 1

JEE Main 2021 Solution View → 59

The equilibrium constant for the reaction A ( s ) ⇌ M ( s ) + 1 2 O 2 ( g ) is K p = 4 . At equilibrium, the partial pressure of O 2 is _____ atm. (Round off to the nearest i

JEE Main 2021 Solution View → 60

PCl 5 ⇌ PCl 3 + Cl 2 K c = 1 . 844 3 . 0 moles of PCl 5 is introduced in a 1 L closed reaction vessel at 380 K . The number of moles of PCl 5 at equilibrium is — ×

JEE Main 2021 Solution View → 61

For the reaction A + B ⇌ 2 C the value of equilibrium constant is 100 at 298 K . If the initial concentration of all the three species is 1 M each, then the equilibrium conce

JEE Main 2021 Solution View → 62

Value of K P for the equilibrium reaction N 2 O 4 ( g ) ⇌ 2 NO 2 ( g ) at 288 K is 47 . 9 . The K C for this reaction at same temperature is (Nearest integer) R = 0 . 083 L b

JEE Main 2021 Solution View → 63

2 SO 2 ( g ) + O 2 ( g ) ⇌ 2 SO 3 ( g ) In an equilibrium mixture, the partial pressures are P SO 3 = 43 kPa ; P O 2 = 530 Pa and P SO 2 = 45 kPa . The equilibrium constant K

JEE Main 2021 Solution View → 64

Consider the reaction N 2 O 4 (   g ) ⇌ 2 NO 2 (   g ) The temperature at which K C = 20 . 4 and K P = 600 . 1 , is ______ K . (Round off to the Nearest Integer). [

JEE Main 2021 Solution View → 65

For the reaction A g ⇌ B g at 495 K , Δ r G ° = - 9 . 478 kJ mol - 1 If we start the reaction in a closed container at 495 K with 22 millimoles of A , the amount of

JEE Main 2021 Solution View → 66

A homogeneous ideal gaseous reaction AB 2 g ⇌ A g + 2 B g is carried out in a 25 litre flask at 27 ° C . The initial amount of AB 2 was 1 mole and the equilibrium pressu

JEE Main 2021 Solution View → 67

The stepwise formation of Cu NH 3 4 2 + is given below: Cu 2 + + NH 3 ⇌ K 1 Cu NH 3 2 + Cu NH 3 2 + + NH 3 ⇌ K 2 Cu NH 3 2 2 + Cu NH 3 2 2 + + NH 3 ⇌ K 3 Cu NH 3

JEE Main 2021 Solution View → 68

At 1990   K and 1   atm pressure, there are equal number of Cl 2 molecules and Cl atoms in the reaction mixture. The value of K p for the reaction Cl 2 g = 2 Cl g under t

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Consider the reaction A ⇌ B at 1000 K . At time t ' , the temperature of the system was increased to 2000 K and the system was allowed to reach equilibrium. Throughout this experim

JEE Advanced 2020 Solution View → 70

The value of K c   us   64   at   800   K for the reaction N 2 g + 3 H 2 g → 2   NH 3   g The value of K c for the following reaction is :

JEE Main 2020 Solution View → 71

For the reaction Fe 2 N s + 3 2 H 2 g ⇌ 2 Fe s + NH 3 g

JEE Main 2020 Solution View → 72

For a reaction X + Y = 2 Z , 1 . 0 mol of X , 1 . 5 mol of Y and 0 . 5 mol of Z were taken in a 1 L vessel and allowed to react. At equilibrium, the concentration of Z was 1 . 0 mo

JEE Main 2020 Solution View → 73

Consider the following reaction: N 2 O 4 ( g ) = 2 NO 2 ( g ) :   Δ H 0 = + 58 k For each of the following cases ( a ,   b ) , the direction in which the equilibrium

JEE Main 2020 Solution View → 74

If the equilibrium constant for A ⇌ B + C is K eq ( 1 ) and that of B + C ⇌ P is K eq ( 2 ) , the equilibrium constant for A ⇌ P is :

JEE Main 2020 Solution View → 75

For the following Assertion and Reason, the correct option is Assertion (A) : When Cu (II) and sulphide ions are mixed, they react together extremely quickly to give a solid. Reaso

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An open beaker of water in equilibrium with water vapour is in a sealed container. When a few grams of glucose are added to the beaker of water, the rate at which water molecules :

JEE Main 2020 Solution View → 77

In the figure shown below reactant A (represented by square) is in equilibrium with product B (represented by circle). The equilibrium constant is (approx):

JEE Main 2020 Solution View → 78

Suitable conditions for melting of ice are:

NTA Abhyas JEE Main 2020 Solution View → 79

PCl 5 vapour decomposes on heating according to the reaction: PCl 5 g ⇌ PCl 3 g + Cl 2 g The density of a sample of a partially dissociated PCl 5 at 1 .0 atm and 500 K was found 4

NTA Abhyas JEE Main 2020 Solution View → 80

NH 4 HS ( s ) ⇌ NH 3 ( g ) + H 2 S ( g ) In the above reaction, if the pressure at equilibrium and at 300 K is 100 atm then what will be the equilibrium constant K p ?

NTA Abhyas JEE Main 2020 Solution View → 81

Calculate Δ r G for the reaction at 27 o C H 2 g + 2 Ag + aq ⇌ 2 Ag s + 2 H + aq Given : P H 2 = 0.5 bar ; Ag + = 10 - 5 M ; H + = 1 0 - 3 M ; Δ f G ∘ Ag + aq = 77.1 kJ/mol

NTA Abhyas JEE Main 2020 Solution View → 82

The equilibrium constant for a reaction A + B ⇋ C + D is 1 × 10 - 2 at 298 K and is 2 at 273 K . The chemical process resulting in the formation of C and D is:

NTA Abhyas JEE Main 2020 Solution View → 83

At 300 K, A ⇌ Product Δ G T o = − 200 kJmol − 1 B ⇌ Product Δ G T o = − 50 kJmol − 1 Thus, the ratio of equilibrium constant at 300 K is

NTA Abhyas JEE Main 2020 Solution View → 84

Ammonium sulphide and ammonium selenide on heating dissociates as (NH 4 ) 2 S(s) ⇌ 2NH 3 (g)+ H 2 S(g); K p1 = 9 × 10 -3 atm 3 (NH 4 ) 2 Se(s) ⇌ 2NH 3 (g) + H 2 Se(g); K p2 = 4.5 ×

NTA Abhyas JEE Main 2020 Solution View → 85

At 800 ° C , the following equilibrium is established as F 2 g ⇌ 2 F g The composition of equilibrium may be determined by measuring the rate of effusion of the mixture through a p

NTA Abhyas JEE Main 2020 Solution View → 86

The solubilities of AgBr in water, in 0 .01 M CaBr 2 , 0 .01 M KBr and in 0 .05 M AgNO 3 are S 1 ,S 2 ,S 3 and S 4 respectively. Then the order of solubilities is

NTA Abhyas JEE Main 2020 Solution View → 87

The equilibrium constants (K_ P 1 ) and (K_ P 2 ) for the reaction (X 2 Y ) and (Z P+Q ), respectively are in the ratio of (1: ) 9. If the degree of dissociation of (X ) and (Z ) b

NTA Abhyas JEE Main 2020 Solution View → 88

For the reaction, 2 A g + B g ⇌ C g + D g ; K c = 1 0 1 2 . If the initial moles of A, B, C and D are 2 , 1 , 7 and 3 moles respectively in 1 L vessel, what is the equilibrium conc

NTA Abhyas JEE Main 2020 Solution View → 89

One of the reaction that takes place in producing steel from iron ore is the reduction of iron(II) oxide by carbon monoxide to give iron metal and CO 2 . FeO s + CO g ⇌ Fe s + CO 2

NTA Abhyas JEE Main 2020 Solution View → 90

Which is correct relationship between K p and K c for following reversible reaction at 10 K temperature? K p and K c in units of atm and M respectively A 2 g + 3B 2 g ⇌ 2AB 3 g

NTA Abhyas JEE Main 2020 Solution View → 91

For the reaction 2 H I ( g ) ⇌ H 2 ( g ) + I 2 ( g ) . The value of K c is 4. If 2 mol of H 2 , 2 mol of I 2 and 2 mol of HI are present in one litre container then moles of I 2 pr

NTA Abhyas JEE Main 2020 Solution View → 92

Equilibrium constant for the reaction 4 A ( g ) ⇌ B ( g ) + 2 C ( g ) is – Given: 2 A g ⇌ B g + Y g ; k c 1 = 8 C g ⇌ A g + 1 2 Y g ; k c 2 = 1 4

NTA Abhyas JEE Main 2020 Solution View → 93

For the following three reactions I, II and III, equilibrium constants are given 1. CO g + H 2 O g ⇌ CO 2 g + H 2 g ; K 1 2. CH 4 g + H 2 O g ⇌ CO g + 3H 2 g ; K 2 3. CH 4 g + 2 H

NTA Abhyas JEE Main 2020 Solution View → 94

Equilibrium constant K p for the reaction CaCO 3 ⇌ CaO + CO 2 is 0.82 atm at 7 2 7 ∘ C. If 1 mole of CaCO 3 is placed in a closed container of 20 L and heated to this temperature,

NTA Abhyas JEE Main 2020 Solution View → 95

The pH of pure water at 298 K and 308 K are 7 and 6 respectively. Calculate the heat of formation of water from H + and O H – .

NTA Abhyas JEE Main 2020 Solution View → 96

For A + B ⇌ C + D , if initially the concentration of A and B are equal but at equilibrium concentration of D will be twice of that of A then what will be the equilibrium constant

NTA Abhyas JEE Main 2020 Solution View → 97

For a reaction A → B, E a = 10 kJ/mol, ΔH = 5 kJ/mol . Thus potential energy profile for this reaction is

NTA Abhyas JEE Main 2020 Solution View → 98

The initial concentration of X and Y were 2 and 4 mole/L respectively. For the following equilibrium X + 2 Y ⇌ Z which of the following relationship among equilibrium concentration

NTA Abhyas JEE Main 2020 Solution View → 99

The dissociation equilibrium of a gas AB 2 can be represented as, 2 AB 2 (g) ⇌ 2 AB(g) + B 2 (g) The degree of dissociation is x and is small as compared to 1 . The expression rela

NTA Abhyas JEE Main 2020 Solution View → 100

The equilibrium constant of the following isomerisation reaction at 400 K and 298 K are 2 .07 and 3 .42 respectively. Which of the following is/are correct? I. The reaction is exot

NTA Abhyas JEE Main 2020 Solution View → 101

Acetic acid ( C H 3 C O O H ) is partially dimerised to C H 3 C O O H 2 in the vapour phase. At a total pressure of 0 .200 atm , acetic acid is 92 .0% dimerized at 298 K . The valu

NTA Abhyas JEE Main 2020 Solution View → 102

1 mole of N 2 O 4 ( g ) at 300 K is kept in a closed container under 1 atm . It is heated to 600 K when 20% by mole of N 2 O 4 ( g ) decomposes to N O 2 ( g ) . The resultant press

NTA Abhyas JEE Main 2020 Solution View → 103

For the reaction 3 A ⇌ C + 2 D , initially A was taken. At equilibrium the concentration of D is twice that of A. The value of K c is

NTA Abhyas JEE Main 2020 Solution View → 104

In the esterification C 2 H 5 O H l + C H 3 C O O H l ⇌ C H 3 C O O C 2 H 5 l + H 2 O l an equimolar mixture of alcohol and acid taken initially yields under equilibrium, the water

NTA Abhyas JEE Main 2020 Solution View → 105

Initially 3 moles of ' A ' was taken in a 1 L container. The approx. moles of A left in the container when the following equilibrium established is x × 1 0 - 6 .The value of ' x '

NTA Abhyas JEE Main 2020 Solution View → 106

The ionisation constant for N H 4 + in water is 5.0 × 1 0 - 10 at 25 o C .The rate constant for the reaction of N H 4 + and O H - to form N H 3 and H 2 O at 25 o C is 3.0 ×

NTA Abhyas JEE Main 2020 Solution View → 107

10 moles of A 2 , 15 moles of B 2 and 5 moles of A B are placed in a 2 litre vessel and allowed the come to equilibrium. The final concentration of A B is 10.5 M , A 2 g + B 2 g ⇌

NTA Abhyas JEE Main 2020 Solution View → 108

The equilibrium Cu 0 + Cu II ⇌ 2Cu I In aqueous medium at 25oC shifts towards the left in the presence of (1) C l - (2) C N - (3) SC N - (4) N O 3 -

NTA Abhyas JEE Main 2020 Solution View → 109

N H 4 H S ( s ) ⇌ N H 3 ( g ) + H 2 S ( g ) The equilibrium pressure at 25°C is 0.660 atm. What is K p for the reaction?

NTA Abhyas JEE Main 2020 Solution View → 110

The equilibrium S O 2 C l 2 g ⇌ S O 2 g + C l 2 g is attained at 2 5 0 C in a closed container and an inert gas, helium is introduced. Which of the following statement is correct?

NTA Abhyas JEE Main 2020 Solution View → 111

Consider reaction, CaCO 3 s ⇌ CaO s + CO 2 g In a closed container at equilibrium. What would be the effect of addition of CaCO 3 on the equilibrium concentration of CO 2  

NTA Abhyas JEE Main 2020 Solution View → 112

What is the equilibrium expression for the reaction P 4 s + 5 O 2 ( g ) ⇌ P 4 O 10 ( s ) ?

NTA Abhyas JEE Main 2020 Solution View → 113

Hydrogen peroxide (H 2 O 2 ) decomposes according to the equation 2 H 2 O 2 ⇌ 2 H 2 O I + O 2 g From the following data at 2 5 ∘ C calculate the value of K p at 400 K for the above

NTA Abhyas JEE Main 2020 Solution View → 114

Consider the following gaseous equilibria with equilibrium constants K 1 a n d K 2 respectively. S O 2 g + 1 2 O 2 ( g ) ⇌ S O 3 ( g ) 2 S O 3 g ⇌ 2 S O 2 g + O 2 ( g ) The equilib

NTA Abhyas JEE Main 2020 Solution View → 115

The equilibrium constants at 298 K for a reaction A + B ⇌ C + D is 100. If the initial concentration of all the four species were 1 M each, then equilibrium concentration of D (in

NTA Abhyas JEE Main 2020 Solution View → 116

Equilibrium constant for reaction N H 4 O H a q + H + a q ⇌ N H 4 + a q + H 2 O l is 1.8 × 19 9 . Hence equilibrium constant for ionization N H 3 + H 2 O ⇌ N H 4 + a q + O H - a q

NTA Abhyas JEE Main 2020 Solution View → 117

Which of the following lines correctly show the temperature dependence of equilibrium constant K, for an exothermic reaction?

NTA Abhyas JEE Main 2020 Solution View → 118

For the reaction N 2 O 4 ⇌ 2 N O 2 g , the degree of dissociation of N 2 O 4 is 0.2 at 1 a t m . Then the K p of 2 N O 2 ⇌ N 2 O 4 is

NTA Abhyas JEE Main 2020 Solution View → 119

The degree of dissociation of P C l 5 ( g ) for the equilibrium P C l 5 g ⇌ P C l 3 g + C l 2 ( g ) is approximately related to the pressure at equilibrium (P) by the relation [ α

NTA Abhyas JEE Main 2020 Solution View → 120

500 mL of 0.150 M AgNO 3 solution were added in 500 mL of 1.09 M Fe 2 + solution and the reaction is allowed to reach an equilibrium at 2 5 ∘ C . Ag + aq + Fe 2 + aq ⇌ Fe 3 + aq +

NTA Abhyas JEE Main 2020 Solution View →
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