Question

The following data is given for the vapour phase reacti
at constant pressure,
CH6-→ CH3 + H, ∆H = - 420 kJ mol-1
C2H5-CH4 + H, ∆H = 168 kJ mol-1
The enthalpy change for the reaction
2C2H5-CH6 + C2H4 is
(a) + 250kJ mol-1
(b) -588 kJ mol-1
(c) +588 kJ mol-1
(d) - 252 kJ mol-1​

Answer 1

Explanation:

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