Heats of combustion of CH(4),C(2)H(4), C...

Heats of combustion of `CH_(4),C_(2)H_(4), C_(2)H_(6)` are -890, -1411 and -1560 kJ/ "mole" respectively. Which has the lowest fuel value in kJ/g ?

`CH_(4)`

`C_(2)H_(4)`

`C_(2)H_(6)`

all same

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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 heats of combustion of CH_(4)(g) and C_(2)H_(6)(g) are -890.3 and -150kJ mol^(-1) respectively. Which has higher calorific value?

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?

The enthalpies of combustion of CH_(4) and C_(2)H_(6) are -890.3 and -1559.7 k J mol^(-1) respectively. Which of the two has greater efficiency of fuel per gram?

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 heats of combustion of Ch_(4) and C_(4)H_(10) are -890.3 and -2878.7 kJ mol^(-1) , respectively. Which of the two has greater efficiency as fuel per gram?

The heats of combustion of C_(2)H_(4(g)), C_(2)H_(6(g)) and H_(2(g)) are -1405,-1558.3 and -285.6 kJ respectively. Calculate heat of hydrogenation of ethylene.

The heats of formation of CH_(4)(g),C_(2)H_(6)(g) and C_(4)H_(10)(g) are -74.8, -84.7 and -126.1 kJ" "mol^(-1) respectively. Arrange them in order of their efficiency as fuel per gram. Heats of formation of CO_(2)(g) and H_(2)O(l) are -393.5 and -285.8 kJ mol^(-1) respectively.

The values of heat of combustion of ethane (C_(2)H_(6)) and ethyne (C_(2)H_(2)) are -341 and -310 Kcal respectively. Then which of the following is better fuel on mass basis:

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