The heat of combustion of liquid ethanol is -327.0 kcal calculate the heat of formation of ethanol. Given that the heats of formation of `CO_(2)(g) and H_(2)O(l)` are -94.0 kcal and -68.4 kcal respectively.

Calculate the standard heat of formation of C_(10)H_(8) (naphthalene) if standard heat of combustion of nephathalene is -123.0 kcal at 298K and standard heats of formation of CO_(2)(g) and H_(2)O(l) are -94.0 kcal and -68.4 kcal respectively.

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.

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 heat of combustion of acetylene is 312 Kcal . If heat of formation of CO_(2) & H_(2)O are -94 & -68 Kcal respectively . Given that heat of atomisation of C& H are 150 & 50 Kcal respectively and C-H bond energy is 93 Kcal . Calculate (DeltaH_(C=C))/(6)