Question

The relation between Kp and Kc for the reaction A(g)+B(g) $\rightleftharpoons$ C(g)+2D(g) is-

Answer 1

Kp = Kc RT

Answer 2

The relation between Kp and Kc is given by Kp = Kc(RT)$^{\Delta n_g}$, where $\Delta n_g$ is the difference between the total number of moles of gaseous products and gaseous reactants. For the reaction A(g) + B(g) $\rightleftharpoons$ C(g) + 2D(g), the number of moles of gaseous reactants is 1 + 1 = 2, and the number of moles of gaseous products is 1 + 2 = 3. Therefore, $\Delta n_g = 3 - 2 = 1$. Substituting this value into the formula gives Kp = Kc(RT)$^1$ = Kc RT.