Question

For the following gases equilibrium, N2O4 (g) $\rightleftharpoons$ 2NO2 (g), Kp is found to be equal to Kc. This is attained when:

• A. 0⁰C
• B. 273 K
• C. 1 K
• D. 12.19 K

Answer 1

Answer: (D)

12.19 K

Answer 2

N2O4 2NO2(g)

$\Delta$ n = 2 – 1 = 1, KP = KC (given)

We know, KP = KC (RT)$\Delta$n

1 = RT, T = $\frac { 1 } { .0821 }$ = 12.19 K