Question

For the reaction,

2NO_2(g) <=> 2NO(g)+ O_2(g)

(K_c = 1.8 xx 10\^(-6) "at" 184\^oC)

When K_p and K_c are compared at 184\^o C , it is found that :

(a) K_p is greater than K_c

(b) K_p is less than K_c

(c) K_p = K_c

(d) Either K_p is greater than, less than or equal to K_c depends upon the total gas pressure

Solution

K_p = K_cRT\^(Deltan),

Deltan = 1

Hence, K_p > K_c.

Therefore, option (a) is correct.