The heats of combustion of `C_(2)H_(4), C_(2)H_(6)` and `H_(2)` gases are -1409.5 KJ, -1558.3 KJ and -285.6 KJ respectively. The heat of hydrogenation of ethene is

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.

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 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 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 standard enthalpies of combustion of C_(2) H_(5) (g) and ethanol are -393.5, -286 and -1368 kJ respectively. The heat of formation of ethanol is : -277 kJ mol ^(-1) , + 277 kJ mol ^(-1) , - 554 kJ mol ^(-1) , + 554 kJ mol ^(-1)

Heat of formation of H_2 O_((l)), CO_(2(g)) "and" C_2 H_(4(g)) are -285.0, -399.0, and 69.9 kJ/mole respectively. The heat of combustion of ethylene is _________ .

Heat of formation of H_2 O_((l)), CO_(2(g)) "and" C_2 H_(4(g)) are -285.0, -399.0, and 69.9 kJ/mole respectively. The heat of combustion of ethylene is _________ .

Heats of combustion of C_2H_4, H_2 and C_2H_6 are -1409 K.J, -285 K.J and -1558 KJ . Heat of hydrogenation of ethylene is