The energy diagram below describes the conversion of starting material (S.M.) in

Question

The energy diagram below describes the conversion of starting material (S.M.) into two products by different pathways. What statement below is true of this diagram?

15. he energy diagram below describes the conversion of starting material (S M) into two products by different pathways. What statement below is true of this energy diagram? S.M Product 2 Product 1 (a) For reversible reactions, equal amounts of Product 1 and Product 2 will be formed. (b) For reversible reactions, Product 2 will dominate at equilibrium (c) For irreversible reactions, Product 1 will dominate. (d) None of the above are true.

Explanation / Answer

Option "a" is not true since the activation energies for the formation of products is not same and hence for reversible reactions equal amounts of Product 1 and Product 2 are not formed.

Option"b" is also not true. This is because at equilibrium product 2 is converted to Starting material more easily than the product 1.Hence for reversible reactions product 2 will not dominate at equilibrium.

Option "c" is false. For the case of irreversible reactions, formation of product 2 is a lot easier than product 1 due to its less activation energy when compared to activation energy for product 1.
Thus option "d" (None of the above are true) is the correct answer.

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