Enthalpy of combustion of `CH_(4)` , `C_(2)H_(6)` and `C_(3)H_(8)` are `-210-370` and `-530Kcal//mol` respectivaly. The approximate value of enthalpy of combustion of `n`-hexane is

DeltaH combustion for CH_(4),C_(2)H_(6) , and C_(3)H_(8) are -210.8,-368.4 and -526.3 kcal mol^(-1) , respectively. Calculate DeltaH combustion for octane.

DeltaH combustion for CH_(4),C_(2)H_(6) , and C_(3)H_(8) are -210.8,-368.4 and -526.3 kcal mol^(-1) , respectively. Calculate DeltaH combustion for C_(8)H_(18)

Heat of combustion of CH_(4),C_(2)H_(4),C_(2)H_(6) are -890,-1411 and -1560 kJ //mol respectively. Which has the lowest calorific fuel value ?

Heat of combustion of CH_(4),C_(2)H_(4),C_(2)H_(6) are -890,-1411 and -1560 kJ //mol respectively. Which has the lowest calorific fuel value ?

The enthalpy of combustion of H_(2) , cyclohexene (C_(6)H_(10)) and cyclohexane (C_(6)H_(12)) are -241 , -3800 and -3920KJ per mol respectively. Heat of hydrogenation of cyclohexene is

Heats of combustion of CH_(4),C_(2)H_(6),C_(2)H_(4) and C_(2)H_(2) are -212.8,-373.0,-337.0 and -310.5 kcal respectively at the same temperature. The best fuel among these gases is:

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