Question

The ΔHof for CO2(g),CO(g) and H2O(g) are - 393.5,- 110.5 and -241.8 kJ mol-1 respectively. The standard enthalpy change (in kJ mol-1) for the reaction CO2 (g ) + H2 (* ) -----> CO(g ) + H2O(g ) is

(a) 524.1

(b) +41.2

(c) -262.5

(d) -41.2

Answer 1

The correct option is (b) +41.2.

Explanation:

For reaction :