`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)

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

Heat of combustion of CH_4, C_2H_6 and C_3H_6 are respectively -210, - 368.4 and -526.3 k cal mol^(-1) . Hence, heat of combustion of C_6H_14 is approximately.

The heats of combustion of C_(2)H_(4(g)), C_(2)H_(6(g)) and H_(2(g)) are -1409.4,-1558.3 and -285.6 kJ respectively. Calculate heat of hydrogenation of ethylene.

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_(2)H_(6)(g) and H_(2)(g) are -890.3, -1559,7 and -285.9 kJ mol^(-1) , respectively. Which of these fuels is most efficient?

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 ?