Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Chemistry
Chapter
Chemical Equilibrium

NTA Abhyas 2020 · Chemistry · Chemical Equilibrium

Equilibrium constant for the reaction 4A ( g ) ⇌ B ( g ) + 2C ( g )...

Equilibrium constant for the reaction 4A(g)⇌B(g)+2C(g)4A ( g ) \overset{}{⇌}B ( g ) + 2C ( g ) is –
Given:
2A(g)⇌B(g)+Y(g);kc1=82A\left(g\right)\overset{}{⇌}B\left(g\right) + Y\left(g\right); k{c}_{1} = 8
C(g)⇌A(g)+12Y(g);kc2=14C\left(g\right)\overset{}{⇌}A\left(g\right) + \dfrac{1}{2}Y\left(g\right); k{c}_{2} = \dfrac{1}{4}

Options

  1. A32
  2. B16
  3. C2
  4. D128

Correct answer

D. 128

Step-by-step solution

2A(g)⇌B(g)+Y(g)kc1=82A\left(g\right)\overset{}{⇌}B\left(g\right) + Y\left(g\right)k{c}_{1} = 8 ……. (1)
2A(g)+Y(g)⇌2C(g)kc2=(4)2=162A\left(g\right) + Y\left(g\right)\overset{}{⇌}2C\left(g\right)k{c}_{2} = ( 4{)}^{2} = 16 ……. (2)
Add equation (1) and (2)
4A(g)+Y(g)⇌B(g)4A \left(g\right) + Y \left(g\right)\overset{}{⇌}B\left(g\right)+ 2C(g)2C \left(g\right)
kC=kc1\timeskc2=8×16=128{k}_{C} = k{c}_{1} \timesk{c}_{2} = 8 \times16 = 128
Practice Chemical Equilibrium on Quantrex Academy →

More from Chemical Equilibrium

Consider the following reactions in which all the reactants and products are present in… JEE Main 2026Solid carbon, CaO and CaCO _3 are mixed and allowed to attain equilibrium at T K.… JEE Main 2026In a closed flask at 600 K, one mole of X _2 Y _4 (g) attains equilibrium as given below… JEE Main 2026One mole each of He and A(g) are taken in a 10 L closed flask and heated to 400 K to… JEE Main 2026The reaction A(g) leftharpoons B(g) + C(g) was initiated with the amount ' a ' of A(g) .… JEE Main 2026The values of pressure equilibrium constant recorded at different temperatures for the… JEE Main 2026For the following reaction at 50° C and at 2 atm pressure, 2N_2O_5(g) leftharpoons… JEE Main 2026At T(K) , the equilibrium constant of A_2(g) + B_2(g) leftharpoons C(g) is 2.7 × 10^ -5 .… JEE Main 2026 Full Chemical Equilibrium list All NTA Abhyas JEE Main PYQs