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States of Matter — JEE Main & Advanced Chemistry PYQs

207 previous year questions from States of Matter with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

207 questionsChemistrySolutions on every page
1

Two cylinders, both fitted with frictionless pistons, are filled with mixtures of He and Ar gases. In the first cylinder, the masses of He and Ar are m₁ and m₂ , respectively. In t

JEE Advanced 2026 Solution View → 2

Molar volume (V_m ) of a van der Waals gas can be calculated by expressing the van der Waals equation as a cubic equation with V_m as the variable. The ratio (in mol dm ⁻³ ) of the

JEE Advanced 2025 Solution View → 3

At the sea level, the dry air mass percentage composition is given as nitrogen gas : 70.0, oxygen gas : 27.0 and argon gas : 3.0. If total pressure is 1.15 atm , then calculate the

JEE Main 2025 Solution View → 4

For a reaction, N ₂ O _ 5( ~g ) 2 NO _ 2( ~g ) + 1 2 O _ 2( ~g ) in a constant volume container, no products were present initially. The final pressure of the system when 50 % of r

JEE Main 2025 Solution View → 5

A closed vessel contains 10 ~g of an ideal gas X at 300 ~K , which exerts 2 atm pressure. At the same temperature, 80 ~g of another ideal gas Y is added to it and the pressure beco

JEE Advanced 2024 Solution View → 6

A gas has a compressibility factor of 0 . 5 and a molar volume of 0 . 4 dm 3 mol - 1 at a temperature of 800 K and pressure x atm . If it shows ideal gas behaviour at the same temp

JEE Advanced 2023 Solution View → 7

A certain quantity of real gas occupies a volume of 0 . 15 dm 3 at 100 atm and 500 K when its compressibility factor is 1 . 07 . Its volume at 300 atm and 300 K (When its compressi

JEE Main 2023 Solution View → 8

At 600 K , the root mean square ( rms ) speed of gas X (molar mass = 40 ) is equal to the most probable speed of gas Y at 90 K . The molar mass of the gas Y is _____ g mol –

JEE Main 2023 Solution View → 9

At constant temperature, a gas is at a pressure of 940 . 3 mm Hg . The pressure at which its volume decreases by 40 % is ______ mm Hg . (Nearest integer)

JEE Main 2023 Solution View → 10

Arrange the following gases in increasing order of van der Waals constant ' a ' (A) Ar (B) CH 4 (C) H 2 O (D) C 6 H 6 Choose the correct option from the following.

JEE Main 2023 Solution View → 11

Three bulbs are filled with CH 4 , CO 2 and Ne as shown in the picture. The bulbs are connected through pipes of zero volume. When the stopcocks are opened and the temperature is k

JEE Main 2023 Solution View → 12

For 1 mol of gas, the plot of pV vs p is shown below. p is the pressure and V is the volume of the gas. What is the value of compressibility factor at point A ?

JEE Main 2023 Solution View → 13

The number of statement's, which are correct with respect to the compression of carbon dioxide from point (a) in the Andrews isotherm from the following is _________. A. Carbon

JEE Main 2023 Solution View → 14

for a real gas at 25 ° C temperature and high pressure ( 99 bar) the value of compressibility factor is 2 , so the value of Van 1der Waal's constant ' b ' should b

JEE Main 2022 Solution View → 15

Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R . Assertion A : Activated charcoal adsorbs SO 2 more efficiently than CH 4 . Re

JEE Main 2022 Solution View → 16

A 10   g mixture of hydrogen and helium is contained in a vessel of capacity 0 . 0125   m 3 at 6 bar and 27   ° C . The mass of helium in the mixture is ..... g

JEE Main 2022 Solution View → 17

A mixture of hydrogen and oxygen contains 40 % hydrogen by mass when the pressure is 2 . 2 bar. The partial pressure of hydrogen is bar.

JEE Main 2022 Solution View → 18

A sealed flask with a capacity of 2 dm 3 contains 11 g of propane gas. The flask is so weak that it will burst if the pressure becomes 2 MPa . The minimum temperature at which the

JEE Main 2022 Solution View → 19

The pressure of a moist gas at 27 ° C is 4 atm . The volume of the container is doubled at the same temperature. The new pressure of the moist gas is … × 10 - 1 atm

JEE Main 2022 Solution View → 20

A box contains 0 . 90 g of liquid water in equilibrium with water vapour at 27 ° C . The equilibrium vapour pressure of water at 27 ° C 32 . 0 Torr. When the volume of th

JEE Main 2022 Solution View → 21

Geraniol, a volatile organic compound, is a component of rose oil. The density of the vapour is 0 . 46 gL - 1 at 257 ° C and 100 mmHg . The molar mass of geraniol is (Nearest

JEE Main 2022 Solution View → 22

100 g of an ideal gas is kept in a cylinder of 416 L volume at 27 ° C under 1 . 5 bar pressure. The molar mass of the gas is g mol - 1 . (Nearest integer) (Given : R = 0 . 083

JEE Main 2022 Solution View → 23

Which amongst the given plots is the correct plot for pressure p vs density d for an ideal gas?

JEE Main 2022 Solution View → 24

An evacuated glass vessel weighs 40 . 0 g when empty, 135 . 0 g when filled with a liquid of density 0 . 95 g mL - 1 and 40 . 5 g when filled with an ideal gas at 0 . 82 atm at 250

JEE Main 2022 Solution View → 25

A rigid nitrogen tank stored inside a laboratory has a pressure of 30 atm at 06 : 00 am when the temperature is 27 ° C . At 03 : 00 pm , when the temperature is 45 ° C ,

JEE Main 2022 Solution View → 26

At 300 K , a sample of 3 . 0 g of gas A occupies the same volume as 0 . 2 g of hydrogen at 200 K at the same pressure. The molar mass of gas A is g mol - 1 . (nearest integer) Assu

JEE Main 2022 Solution View → 27

An empty LPG cylinder weighs 14 . 8 kg . When full, it weighs 29 . 0 kg and shows a pressure of 3 . 47 atm . In the course of use at ambient temperature, the mass of the cylinder i

JEE Main 2021 Solution View → 28

Which one of the following is the correct PV vs P plot at constant temperature for an ideal gas ? ( P and V stand for pressure and volume of the gas respectively)

JEE Main 2021 Solution View → 29

Two flasks I and II shown below are connected by a valve of negligible volume. When the valve is opened, the final pressure of the system in bar is x × 10 - 2 . The value of x

JEE Main 2021 Solution View → 30

The unit of the van der Waals gas equation parameter ' a ' in P + an 2 V 2 ( V - nb ) = nRT is:

JEE Main 2021 Solution View → 31

An LPG cylinder contains gas at a pressure of 300 kPa at 27 ° C . The cylinder can withstand the pressure of 1 . 2 × 10 6 Pa . The room in which the cylinder is kept catc

JEE Main 2021 Solution View → 32

A home owner uses 4 . 00 × 10 3 m 3 of methane CH 4 gas, (assume CH 4 is an ideal gas) in a year to heat his home. Under the pressure of 1 . 0 atm and 300 K , mass of gas used

JEE Main 2021 Solution View → 33

The number of chlorine atoms in 20 mL of chlorine gas at STP is _______ 10 21 . (Round off to the Nearest Integer). [Assume chlorine is an ideal gas at STP R = 0 . 083 L bar mol -

JEE Main 2021 Solution View → 34

The pressure exerted by a non-reactive gaseous mixture of 6 . 4 g of methane and 8 . 8 g of carbon dioxide in a 10 L vessel at 27 ° C is _____ kPa . (Round off to the Nearest

JEE Main 2021 Solution View → 35

A certain gas obeys P V m - b = RT . The value of ∂ Z ∂ P T is xb RT . The value of x is (Integer answer) ( Z : compressibility factor)

JEE Main 2021 Solution View → 36

A car tyre is filled with nitrogen gas at 35 psi at 27 ° C . It will burst if pressure exceeds 40 psi. The temperature in C ∘ at which the car tyre will burst is (Rounde

JEE Main 2021 Solution View → 37

The volume occupied by 4 . 75 g of acetylene gas at 50 ° C and 740 mm Hg pressure is ____________ L . (Rounded off to the nearest integer) [Given R = 0 . 0826 L atm K - 1 mol

JEE Main 2021 Solution View → 38

If the distribution of molecular speeds of a gas is as per the figure shown below, then the ratio of the most probable, the average, and the root mean square speeds, respectively,

JEE Advanced 2020 Solution View → 39

A spherical balloon of radius 3   cm containing helium gas has a pressure of 48 × 10 - 3 bar. At the same temperature, the pressure, of a spherical balloon of radius 12 &

JEE Main 2020 Solution View → 40

A mixture of one mole each of H 2 , He and O 2 each are enclosed in a cylinder of volume V at temperature T. If the partial pressure of H 2 is 2 atm , the total pressure of the gas

JEE Main 2020 Solution View → 41

Which one of the following graphs is not correct for ideal gas? d = Density, P = Pressure, T = Temperature

JEE Main 2020 Solution View → 42

A mixture of gases O 2 , H 2 and C O are taken in a closed vessel containing charcoal The graph that represents the correct behaviour of pressure with time is:

JEE Main 2020 Solution View → 43

NaClO 3 is used, even in spacecrafts, to produce O 2 . The daily consumption of pure O 2 by a person in 492 L at 1 atm, 300 K . How much amount of NaClO 3 , in grams, is required t

JEE Main 2020 Solution View → 44

Identify the correct labels of A , B and C in the following graph from the options given below: Root mean square speed V r m s ; most proable speed V m p ; Average speed V a v

JEE Main 2020 Solution View → 45

N 2 + 3 H 2 ⟶ 2 N H 3 1 mole N 2 and 4 moles H 2 are taken in 15 L flask at 27 o C . After complete conversion of N 2 into N H 3 , 5 L of H 2 O is added. Pressure set up in the fla

NTA Abhyas JEE Main 2020 Solution View → 46

The reduced temperature = θ = T T C The reduced pressure = π = P P C The reduced volume = ϕ = V V C Hence, it can be said that the reduced equation of state may be given as

NTA Abhyas JEE Main 2020 Solution View → 47

For one mole of a van der Waals when b = 0 and T = 300 K, the PV vs. 1/V plot is shown below. The value of the van der Waals constant a (atm litre 2 mol -2 ) is:

NTA Abhyas JEE Main 2020 Solution View → 48

An open manometer attached to a flask containing ammonia gas have no difference in mercury level initially as shown in diagram. After sparking into the flask, ammonia is partially

NTA Abhyas JEE Main 2020 Solution View → 49

According to the kinetic theory of gases, between two successive collisions, a gas molecule travels

NTA Abhyas JEE Main 2020 Solution View → 50

Nitrogen gas is kept in an open beaker at 273 K and 1 atm pressure. If the pressure of the surrounding suddenly falls to 0.5 atm and the temperature increases to 546 K, then the pe

NTA Abhyas JEE Main 2020 Solution View → 51

The van der Waal's constant 'b' of a gas is 4 π × 1 0 - 4 L/mol . How near can the centres of the two molecules approach each other ? [Use : N A = 6 × 10 23 ]

NTA Abhyas JEE Main 2020 Solution View → 52

For a given one mole of ideal gas kept at 6.5 a t m in a container of capacity 2.463 L , the Avogadro proportionality constant for the hypothesis is (see figure)

NTA Abhyas JEE Main 2020 Solution View → 53

One mole of an ideal monoatomic gas is mixed with one mole of an ideal diatomic gas. The molar specific heat of the mixture at constant volume is (in Calories)

NTA Abhyas JEE Main 2020 Solution View → 54

An open vessel at 27 o C is heated until 3/8 th of the air in it has been expelled. Assuming that the volume remains constant, calculate the temperature at which the vessel was hea

NTA Abhyas JEE Main 2020 Solution View → 55

The rates of diffusion of gases A and B of molecular weight 36 and 64 are in the ratio

NTA Abhyas JEE Main 2020 Solution View → 56

Which of the following graph represent Boyles law?

NTA Abhyas JEE Main 2020 Solution View → 57

At STP, 5.6 litre of a gas weighs 60 g . The vapour density of gas is -

NTA Abhyas JEE Main 2020 Solution View → 58

Determine how many of the following statements are true at very high pressure for a real gas: a Compressibility factor is greater than 1 . b Compressibility factor varies linearly

NTA Abhyas JEE Main 2020 Solution View → 59

100 ml of O 2 g effuse from a porous container in 100 sec . 75 ml of unknown gas effuses under the same conditions of temperature and pressure in 150 sec . Calculate vapour density

NTA Abhyas JEE Main 2020 Solution View → 60

Which of the following curve is correct for a given amount of an ideal gas at constant pressure?

NTA Abhyas JEE Main 2020 Solution View → 61

At what temperature would N 2 molecules have same average speed as C O molecules at 200 K .

NTA Abhyas JEE Main 2020 Solution View → 62

The rate of diffusion of two gases A and B are in the ratio 1 : 4 a s s u m e ; P A = P B . In other experiment a mixture contains these gases A and B in the mole ratio 2 : 3 . The

NTA Abhyas JEE Main 2020 Solution View → 63

Consider the graph between compressibility factor Z and pressure P : The correct increasing order of ease of liquefaction of the gases shown in the above graph is

NTA Abhyas JEE Main 2020 Solution View → 64

An air column closed in a tube sealed at one end by a H g column having height h . When the tube is placed with open end down, the height of the air column is l 1 . If the tube is

NTA Abhyas JEE Main 2020 Solution View → 65

The relative humidity of air is 80% at 27 o C . .If the aqueous tension at the same temperature is 27 mm of Hg . The partial pressure of water vapour in the air will be (in mm of H

NTA Abhyas JEE Main 2020 Solution View → 66

Which of the following graphs is inconsistent with ideal gas behaviour ?

NTA Abhyas JEE Main 2020 Solution View → 67

A balloon filled with oxygen is placed in a tank full of hydrogen gas at the same pressure, is pricked with a sharp pointed needle. The volume of balloon just after the pricking wo

NTA Abhyas JEE Main 2020 Solution View → 68

The rms speed of N 2 molecules in a gas is u . If the temperature is doubled and the nitrogen molecules dissociate into nitrogen atoms, the rms speed becomes

NTA Abhyas JEE Main 2020 Solution View → 69

Two van der waal's gases have same value of a but different value of b which of the following statement is correct?

NTA Abhyas JEE Main 2020 Solution View → 70

C O 2 gas is liquefied at 27 o C . Gas follows the following graph during liquefaction for 1 mole of C O 2 . Then which statement is (are) correct in gaseous phase will (i) The max

NTA Abhyas JEE Main 2020 Solution View → 71

Which of the following sketches is an isobars (Given: nR P >1 )

NTA Abhyas JEE Main 2020 Solution View → 72

The van der Waals equation for one mole of a real gas can be written as P + a V 2 V – b = R T . For the gases H 2 , N H 3 , and C H 4 , the value of 'a' b a r L – 2 m o l – 2 are 0

NTA Abhyas JEE Main 2020 Solution View → 73

If density of vapours of a substance of molar mass 18 gm/mole at 1 atm pressure and 500 K is 0.36 kg m − 3 , then value of Z for the vapours is (Take R = 0.082 L atm mole − 1 K − 1

NTA Abhyas JEE Main 2020 Solution View → 74

To an evacuated vessel with movable piston under external pressure of 1 atm, 0.1 mole of He and 1.0 mole of an unknown compound (vapour pressure 0.68 atm at 0 ο C ) are introduced.

NTA Abhyas JEE Main 2020 Solution View → 75

For one mole of a van der Waals gas when b = 0 and T = 300 K, the PV vs. 1 V plot is shown below. The value of the van der Waals constant a atm . litr e 2 mo l - 2 is

NTA Abhyas JEE Main 2020 Solution View → 76

The density of O 2 is 16 at NTP. At what temperature(in o C) its density will be 14? Consider that the pressure remains constant.

NTA Abhyas JEE Main 2020 Solution View → 77

Positive deviation from ideal behaviour takes place because of

NTA Abhyas JEE Main 2020 Solution View → 78

At what temperature (in kelvin) is the rms speed of hydrogen molecules the same as oxygen molecules at 1327 ℃ ?

NTA Abhyas JEE Main 2020 Solution View → 79

The diffusion coefficient of an ideal gas is proportional to its mean free path and mean speed. The absolute temperature of an ideal gas is increased 4 times and its pressure is in

NTA Abhyas JEE Main 2020 Solution View → 80

Calculate the number of hours of service that can be derived at 1 atm, 300 K from an acetylene lamp containing 640 g calcium carbide. Given that the lamp requires 50 L acetylene ga

NTA Abhyas JEE Main 2020 Solution View → 81

Two closed bulbs of equal volume (V) containing an ideal gas initially at pressure p i and temperature T 1 are connected through a narrow tube negligible volume as shown in the fig

NTA Abhyas JEE Main 2020 Solution View → 82

One mole of a monoatomic real gas satisfies the equation p V − b = RT where b is a constant. The relationship of interatomic potential V ( r ) and interatomic distance r for the ga

NTA Abhyas JEE Main 2020 Solution View → 83

One mole of N 2 O 4 (g) at 300 K is kept in a closed container under one atmosphere. It is heated to 600 K when 20% by mass of N 2 O 4 (g) decomposes to N O 2 (g). The resultant pr

NTA Abhyas JEE Main 2020 Solution View → 84

The volume-temperature graphs of a given mass of an ideal gas at constant pressures are shown below. What is the correct order of pressures?

NTA Abhyas JEE Main 2020 Solution View → 85

Which of the following volume (V), temperature (T) plots represents the behaviour of one mole of an ideal gas at one atmospheric pressure?

NTA Abhyas JEE Main 2020 Solution View → 86

The qualitative sketches I, II and III given below show the variation of surface tension with molar concentration of three different aqueous solutions of KCl, C H 3 OH and C H 3 (

NTA Abhyas JEE Main 2020 Solution View → 87

At 400 K, the root mean square (rms) speed of a gas X (molecular weight = 40) is equal to the most probable speed of gas Y at 60 K. The molecular weight of the gas Y is

NTA Abhyas JEE Main 2020 Solution View → 88

To an evacuated vessel with movable piston under external pressure of 1 atm, 0.1 mol of He and 1.0 mol of an unknown compound (vapour pressure 0.68 atm. at 0 ° C ) are introduced.

NTA Abhyas JEE Main 2020 Solution View → 89

A mixture of C H 4 and C 2 H 2 occupied a certain volume at a total pressure equal to 63 torr. The same gas mixture was burnt to C O 2 and H 2 O ( l ). C O 2 ( g ) alone was collec

NTA Abhyas JEE Main 2020 Solution View → 90

What will be the relation between the T 1 of gas 1 with M 1 = 56 and T 2 of gas 2 with M 2 = 44 if the average speed of gas 1 is equal to most probable speed of gas 2?

NTA Abhyas JEE Main 2020 Solution View → 91

For gaseous state, if most probable speed is denoted by C * , average speed by C ̄ and root mean square speed by C, then for a large number of molecules the ratios of these speeds

NTA Abhyas JEE Main 2020 Solution View → 92

Graphs between pressure and volume are plotted at different temperature. Which of the following isotherms represent Boyle's law as PV = constant?

NTA Abhyas JEE Main 2020 Solution View → 93

The drain cleaner, Drainex contains small bits of aluminium which react with caustic soda to produce dihydrogen. What volume of dihydrogen in mL at 20 ° C and one bar will be relea

NTA Abhyas JEE Main 2020 Solution View → 94

A graph is plotted between pressure and volume at different temperature. On the basis of the graph what changes will you observe in the volume if (i) the pressure is increased at c

NTA Abhyas JEE Main 2020 Solution View → 95

A 2 L vessel is filled with air 50 ° C and a pressure of 3 atm. The temperature is now raised to 200 ° C . A value is now opened so that the pressure inside drops to one atm. What

NTA Abhyas JEE Main 2020 Solution View → 96

For real gases, the relation between P, V and T is given by van der Waals equation, P + a n 2 V 2 V - n b = n R T . For the following gases C H 4 , C O 2 , O 2 , H 2 which gas will

NTA Abhyas JEE Main 2020 Solution View → 97

It is observed that H 2 and He gases always show positive deviation from ideal behaviour i.e., Z > 1. This is because

NTA Abhyas JEE Main 2020 Solution View → 98

Consider the following graph: X, Y and Z can be respectively

NTA Abhyas JEE Main 2020 Solution View → 99

The composition of the equilibrium mixture for the equilibrium C l 2 ⇌ 2 C l at 1470 K diffuses 1.16 times as fast as Krypton (84) under the same conditions. Find the degree of dis

NTA Abhyas JEE Main 2020 Solution View → 100

Gaseous benzene reacts with hydrogen gas in presence of a nickel catalyst to form gaseous cyclohexane according to the reaction C 6 H 6 g + 3 H 2 g → C 6 H 12 g A mixture of C 6 H

NTA Abhyas JEE Main 2020 Solution View → 101

At STP, a container has 1 mole of Ar, 2 moles of C O 2 , 3 moles of O 2 and 4 moles of N 2 without changing the total pressure if one mole of O 2 is removed, the partial pressure o

NTA Abhyas JEE Main 2020 Solution View → 102

Two inflated balloons I and II (thin skin) having volume 600 mL and 1500 mL at 300 K are taken as shown in diagram. If maximum volume of inner and outer balloons are 800 mL and 180

NTA Abhyas JEE Main 2020 Solution View → 103

Equal weights of two gases of molecular weight 4 and 40 are mixed. The pressure of the mixture is 1.1 atm. The partial pressure of the light gas in this mixture is

NTA Abhyas JEE Main 2020 Solution View → 104

The critical constants P C & T C for methane are 45 a t m and 180 K . The correct statement is -

NTA Abhyas JEE Main 2020 Solution View → 105

The root mean square of gas molecules at 25 K and 1.5 bar is 100 m s - 1 . If the temperature is raised to 100 K and the pressure to 6.0 bar, the root mean square speed becomes

NTA Abhyas JEE Main 2020 Solution View → 106

At very high pressures, the compressibility factor of one mole of a gas is given by:

NTA Abhyas JEE Main 2020 Solution View → 107

A flask containing air (open to the atmosphere) is heated from 300K to 500K. Then % of air escaped to the atmosphere is

NTA Abhyas JEE Main 2020 Solution View → 108

Which of the following graphs shows most significant deviation from ideal gas behaviour?

NTA Abhyas JEE Main 2020 Solution View → 109

Three isothermal plots (P versus V) A, B and C are plotted at three temperature T 1 , T 2 and T 3 respectively The correct order of temperature will be

NTA Abhyas JEE Main 2020 Solution View → 110

Which of the following represents a plot of compressibility factor (Z) versus P at room temperature for helium?

NTA Abhyas JEE Main 2020 Solution View → 111

Ten moles of an ideal gas are filled in a closed vessel. The vessel has cylinder and piston type arrangement and pressure of the gas remains constant at 0.821 atm. Which of the fol

NTA Abhyas JEE Main 2020 Solution View → 112

The ideal gas equation for 1 mol of ideal gas is PV = nRT The graph between P and T at constant volume, i.e. isochores are plotted as under Which of the following order of volume i

NTA Abhyas JEE Main 2020 Solution View → 113

An ideal gas is initially at temperature T and Volume V. Its volume increases by Δ V due to an increase in temperature Δ T , (P remains constant). The quantity δ δ = Δ V V Δ T vari

NTA Abhyas JEE Main 2020 Solution View → 114

A spherical balloon of 21 cm diameter is to be filled up with H 2 at NTP from cylinder containing the gas at 20 atm at 27 o C . The cylinder can hold 2.82 l i t r e of water a NTP.

NTA Abhyas JEE Main 2020 Solution View → 115

Which of the following graphs correctly represents the variation of β   =   − 1 V   dV dP with P for an ideal gas at constant temperature?

NTA Abhyas JEE Main 2020 Solution View → 116

The following are the Vander Waal's parameters for four gases W, X, Y and Z Gas a ( a t m L 2 m o l - 2 ) b ( L m o l - 1 ) W 4.0 0.027 X 8.0 0.030 Y 6.0 0.032 Z 12.0 0.027 Based o

NTA Abhyas JEE Main 2020 Solution View → 117

60 g of gaseous C 2 H 6 are mixed with 28 g of carbon monoxide. The pressure of the resulting gaseous mixture is 3 atm. The partial pressure in atm. of C 2 H 6 in the mixture is

NTA Abhyas JEE Main 2020 Solution View → 118

The root mean square speed of N 2 molecules in sample at temperature T is 'x'. If the temperature is doubled, then nitrogen molecules dissociate into atoms, the root mean square sp

NTA Abhyas JEE Main 2020 Solution View → 119

In van der Waal's equation of state of the gas law, constant 'a' and 'b' are used. The constant 'b' is a measure of

NTA Abhyas JEE Main 2020 Solution View → 120

A sample of hydrogen gas was collected over water at 21 ° C and 685 mm Hg. The volume of the container was 7.80 L. Calculate the mass of H 2 ( g ) collected (vapour pressure of wat

NTA Abhyas JEE Main 2020 Solution View →
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