Chemistry · Chemical Equilibrium

JEE Main 2024 — 8 April, Shift 1 — Question 63

For the given hypothetical reactions, the equilibrium constants are as follows:

X⇌Y;K1=1.0\mathrm{X} \rightleftharpoons \mathrm{Y} ; \mathrm{K}_{1}=1.0

Y⇌Z;K2=2.0\mathrm{Y} \rightleftharpoons \mathrm{Z} ; \mathrm{K}_{2}=2.0

Z⇌W;K3=4.0\mathrm{Z} \rightleftharpoons \mathrm{W} ; \mathrm{K}_{3}=4.0

The equilibrium constant for the reaction X⇌W\mathrm{X} \rightleftharpoons \mathrm{W} is ______\_ \_\_\_\_\_.

  1. Option A:

    6

  2. Option B:

    12

  3. Option C:

    8

    Correct
  4. Option D:

    7

Answer: C

Step-by-step solution

X⇌Y,K1=1.0\mathrm{X \rightleftharpoons Y}, \quad K_1 = 1.0 Y⇌Z,K2=2.0\mathrm{Y \rightleftharpoons Z}, \quad K_2 = 2.0 Z⇌W,K3=4.0\mathrm{Z \rightleftharpoons W}, \quad K_3 = 4.0

Adding the reactions gives: X⇌W\mathrm{X \rightleftharpoons W} The equilibrium constant for the overall reaction is:

K=K1×K2×K3=1.0×2.0×4.0=8K = K_1 \times K_2 \times K_3 = 1.0 \times 2.0 \times 4.0 = 8

Answer key and solution verified before publishing.

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Exam
JEE Main 2024
Subject
Chemistry
Chapter
Chemical Equilibrium
Topic
Analysis of Chemical Equilibrium, Equilibrium Constant and Reaction Quotient
For the given hypothetical reactions, the equilibrium constants are… | JEE Main 2024 PYQ with Solution · DhiX AI