If, combustion of `4g` of `CH_(4)` liberates `2.5kcal` of heat, the heat of combustion of `CH_(4)` is `:`

In the combustion of 0.4 g. of CH_(4) 0.25 Kcal. Of heat is liberated. The heat of combustion of CH_(4) is

In the combustion of 0.4 g. of CH_(4) 0.25 Kcal. Of heat is liberated. The heat of combustion of CH_(4) is

In the combustion of 11 g of CO_(2(g)) , 100 kJ of heat is liberated. Heat of combustion of CO_(2(g)) is______ .

The heat of combustion of C_(2)H_(6) is -368.4 kcal . Calculate the heat of combustion of C_(2)H_(2) , when the heat of combustion of H_(2) is 68.32 kcal mol^(-1) . C_(2)H_(4)(g) + H_(2)(g) rarr C_(2)H_(6)(g) , Delta H = 37.1 kcal .