The heat of formation of `H_(2)O_((l))` is `-286.2` kJ. The heat of formation of `H_(2)O_((g))` is likely to be

The heat of formation of H_(2)O(l) is -68.0 kcal, the heat of formation of H_(2)O(g) can logically be

The heat of formation of H_(2)O(l) is -68.0 kcal, the heat of formation of H_(2)O(g) can logically be

The enthalpy of the reaction : H_(2)O_(2)(l) rarr H_(2)O(l) + (1)/(2)O_(2)(g) is -98.3 KJ mol^(-1) and the enthalpy of formation of H_(2)O(l) is -285.6 kJ mol^(-1) . The enthalpy of formation of H_(2)O_(2)(l) is :

At 25^(@)C the heat of formation of H_(2)O_((l)) is -285.9" kJ mole"^(-1) and that for H_(2)O_((g)) is -242.8" kJ mole"^(-1) . The heat of vaporization of water at the same temperature is

The heat of formation (DeltaH_(f)^(@)) of H_(2)O(l) is equal to :

The heat of combustion of ethyl alcohol is -300 kcal. If the heats of formation of CO_(2)(g) and H_(2)O(l) are -9.3 and -68.5 kcal respectively, calculate the heat of formation of ehtyl alcohol.

The heat of combustion of ethyl alcohol is -300 kcal. If the heats of formation of CO_(2)(g) and H_(2)O(l) are -9.3 and -68.5 kcal respectively, calculate the heat of formation of ehtyl alcohol.