C Forward reaction A g 2B g 2C g rf kf A B 2 reverse reaction 2C A 2B rb kb C 2 rf rb kf A B 2 kb C 2

. For the reaction, A

For the reaction, A(g) + 2B(g) 2C(g), the rate constants for the forward and the reverse reactions are 1 ×10–4 and 2.5 × 10–2 respectively. The value of equilibrium constant, K for the reaction would be

(A) 1 × 10–4

(B) 2.5 × 10–2

(D) 2.5 × 102

Best Answer

(C)

Forward reaction

A (g) + 2B (g) 2C (g)

r_f = k_f [A] [B]²

reverse reaction

2C A + 2B

r_b = k_b [C]²

r_f = r_b

k_f [A] [B]² = k_b[C]²

. For the reaction, A

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