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_2H_4, C_2H_6 are-890, -1411 and -1560 kJ/mol respectively. Which has the lowest calorific fuel value in kJ/g:

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 standard heats of combustion of CH_(4)(g) and C_(2)H_(6)(g) are -890 kJ*mol^(-1) and -1560 kJ*mol^(-1) , respectively. Why is the calorific value of C_(2)H_(6)(g) lower than that of CH_(4)(g) ?

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 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 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?

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 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?