Question

∆H° values for complete combustion of C(s), H2(g) and CH4(g) are −96, −71, and −218 Kcal per mole respectively. The ∆H° value for the reaction C¬(s) + 2H2(g) → CH4(g) is (a) −17 Kcal (b) −81 Kcal (c) −20 Kcal (d) −34 Kcal