Question

7. For the reaction A(g) B(g); Kc = 10, B(g) C(g); Kc = 2, C(g) D(g); Kc = 0.01. Calculate KC for the
reaction D(g)

Answer 1

Explanation:

For the reaction

A(g)⇌B(g);K

c

=10

B(g)⇌(Cg);K

C

=2

(Cg)⇌D(g);K

c

=0.01

Adding all, A(g)⇌D(g), equilibrium

K

c

′

=10×2×0.01=0.2

for reversible process,

D(g)⇌A(g)

Equilibriaum Constant, K=1/K

c

K=1/0.2=5