Dihydrogen gas is obtained from natural gas by partial oxidation with steam as per following endothermic reaction:
`CH_(4)(g) + H_(2)O (g) hArr CO(g) + 3H_(2)(g)`
(a) Write as expression for `K_(p)` for the above reaction.
(b) How will the values of `K_(p)` and composition of equilibrium mixture be affected by
(i) increasing the pressure
(ii) increasing the temperature
(iii) using a catalyst ?

Explanation

a. `K_(p)=(p_(CO)xxp_(H_(2))^(3))/(p_(CH_(4))xxp_(H_(2)O))`
b. i. By Le Chatelier's principle, equilibrium will shift in the backward direction.
ii. By Le Chatelier's principle, equilibrium will shift in the backward direction.
iii. Equilibrium composition will not be disturbed but equilibrium will be attained quochly.