Question

AH, of C H2, C2H4 and C,H, respectively are
+226, +56 and -84 kJ/mole. The difference
between heats of hydrogenation of ethyne and
ethene forming ethane is (in kilo joules)
1)-87 2) -170 3) +170 4) Zero​

Answer 1

AH, of C H2, C2H4 and C,H, respectively are

+226, +56 and -84 kJ/mole. The difference

between heats of hydrogenation of ethyne and

ethene forming ethane is (in kilo joules)

1)-87 2) -170 3) +170 4) Zero​

Answer 2

Answer:

option 2

Explanation:

calculate ΔH value of both and subtract them