Question

What is the relation between k p and kc for the reaction n2(g) + 3h2(g) > 2nh3(g)?

Answer 1

N2 + 3 H2 ↔ 2 NH3∆n = np − nr     = 2 −4 = −1The relation between Kp and Kc isKp = Kc × [RT]∆n Kp = Kc × [RT]−1So Kp <Kc

Answer 2

Answer:

(a) We have Kc = [NH3]2 / [N2] [H2]3

Kp = P2NH3 / PN2 P3H2

Now we know the relationship between Kp and Kc.

Kp = Kc(RT)Δn

Δn = 2-(1+3) = -2

Kp = Kc/ (RT)2