ThermochemistryHard

Question

Consider the following isomerization process.

CH2=CH–CH2–CH=CH2(g) → CH2=CH–CH=CH–CH3(g)

Which of the following statement(s) is/are true regarding this process?

Options

A.The process is exothermic.
B.Enthalpy change of reaction = Resonance enthalpy of product.
C.The magnitude of enthalpy of combustion of product is less than that of reactant.
D.The magnitude of enthalpy of hydrogenation of product is greater than that of reactant.

Solution

Resonance occurs in product but not in reactant.

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