Question

Find out the value of K_c from the value of K_p:

CaCO₃(s) ⇌ CaO(s) + CO₂(g), K_p = 167 at 1073 K

Answer 1

K_C = K_p(RT)^-Δn

R = 0.082 L atm mol^-1 K^-1

For this reaction

Δn = (1 + 0) - 0 = 1 K_c = K_p(RT)^-Δn

= 1.67 x (0.082 x 1073)^-1 = 1.90