NCERT Class XI Chemistry Equilibrium Solutions

Question : 32

Total: 73

Predict which of the following reactions will have appreciable concentration of reactants and products :
(a) Cl2(g) ⇌ 2Cl(g), Kc = 5 × 10–39
(b) Cl2(g)+2NO(g) ⇌ 2NOCl(g), Kc = 3.7 × 108
(c) Cl2(g)+2NO2(g) ⇌ 2NO2Cl(g), Kc = 1.8

Solution:

(a) Since Kc is very small.
∴ There will be appreciable concentration of the reactants.
(b) Since Kc is very large.
∴ There will be appreciable concentration of the products.
(c) Since Kc = 1.8, the concentration of reactants and products will be in comparable amounts.

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