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Chemistry Practice

Equilibrium Constant Kc MCQs

3Questions

Topic practice

Equilibrium Constant Kc MCQs

Topic: Equilibrium Constant Kc

Showing 1–3 of 3 MCQs

Chemical Equilibrium Equilibrium Constant Kc

1

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For A + B ⇌ C + D, initially [A] = [B] = 1.0 mol dm⁻³ and [C] = [D] = 0. At equilibrium, [C] = [D] = 0.8 mol dm⁻³. The value of Kc is:

Chemical Equilibrium Equilibrium Constant Kc

2

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For A + B ⇌ C + D, equal initial concentrations of A and B are used. At equilibrium, the concentration of C is twice that of A. The value of Kc is:

Chemical Equilibrium Equilibrium Constant Kc

3

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For A + B ⇌ C + D, 4 mol each of A and B are initially present. At equilibrium, 2 mol each of C and D are formed. The value of Kc is:

1