The heats of combustion for `C, H_(2)` and `CH_(4)` are `-349, -241.8` and `-906.7 kJ` respectively. The heat of formation of `CH_(4)` is

The heat of combustion for C ,H_2 and CH_4 are-349.0, -241.8 and -906.7 kJ respectively.The heat of formation CH_4 is:

The heats of combustion of carbon,hydrogen and acetylene are -394kJ, -286kJ and -130kJ respectively. Calculate heat of formation of C_(2)H_(2)

The heats of combustion of carbon hydrogen and acetylene are -394kJ, -286kJ and -1301 kJ respectively. Calculate heat of formation of C_(2)H_(2)

The heat of combustion of CH_(4)(g) , C(graphite) and H_(2)(g) are - 20 Kcal, - 40 Kcal and -10 Kcal respectively. The heat of formation of methane is

Heat of formation of CO_(2)(g), H_(2)O(l) and CH_(4)(g) are -94.0, -68.4 and -17.9 kcal respectively. The heat of combustion of methane is

The heats of combustion of carbon,hydrogen and acetylene are -394kJ, -286kJ and -1301kJ respectively. Calculate heat of formation of C_(2)H_(2)