In the equilibrium, 2A(g) ⇄ 2B(g) + C2 (g) the equilibrium concentrations of A, B and C2 at 400 K are 1 x 10^-4 M, 2.0 x 10^-3,

Question

In the equilibrium, 2A(g) ⇄ 2B(g) + C₂ (g) the equilibrium concentrations of A, B and C₂ at 400 K are 1 × 10^-4 M, 2.0 × 10^-3 M, 1.5 × 10⁴ M respectively. The value of K_C for the equilibrium at 400 K is ……

(a) 0.06 

(b) 0.09 

(c) 0.62 

(d) 3 × 10^-2

Answer 1

(a) 0.06

[A] = 1 × 10^-4 M; 

[B] = 2 × 10^-3 M; 

[C] = 1.5 × 10^-4 M

2A(g) ⇄ 2B(g) + C₂ (g)

= 6.0 × 10^-2 = 0.06