Question

For the heterogenous reaction, A(s) + 2B(g)  ⇋ 3D(s) + 2Y(g), the relationship between equilibrium constants, K_p and K_c is

(a) K_p = K_c[RT]²

(b) K_p = K_c[RT]⁰

(c) K_p = K_c[RT]^-2

(d) K_p = K_c[RT]^-1

Answer 1

Answer is (b) K_p = K_c[RT]⁰

K_p = K_c(RT)^△n where, △n = [number of gaseous products - number of gaseous reactants].

Here, △n = zero.

Hence, K_p = K_c(RT)⁰.