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The heats of combustion of C2H4, C2H6 and H2 are−1400⋅5 kJ, −1558⋅3 kJ and −285⋅6 kJ. The heat of hydrogenation of ethene is : 

(a) 273⋅6 kJ 

(b) 1⋅368 kJ 

(c) –136⋅8 kJ 

(d) 13⋅68 kJ

1 Answer

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Best answer

Correct option (c) –136⋅8 kJ

Explanation:

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