Solution: Water gas is a 1:1 mixture of carbon monoxide and hydrogen gas and is called water gas because it is formed from steam and hot carbon in the following reaction: H2 O(g) + C(s) ⇌ H 2(g) + CO(g). Methan

Water gas is a 1:1 mixture of carbon monoxide and hydrogen gas and is called water gas because it is formed from steam and hot carbon in the following reaction: 

H₂ O(g) + C(s) ⇌ H ₂(g) + CO(g). 

Methanol, a liquid fuel that could possibly replace gasoline, can be prepared from water gas and hydrogen at high temperature and pressure in the presence of a suitable catalyst.
(a) Write the expression for the equilibrium constant (K _c) for the reversible reaction
2H₂(g) + CO(g) ⇌ CH₃ OH(g)                    ΔH = −90.2 kJ