Consider the given plot of enthalpy of the following reaction between A and B. A + B → C + DIdentify the incorrect statement.

Engineering

Chemistry

Catalysis and Kinetics

Question

Consider the given plot of enthalpy of the following reaction between A and B.

A + B → C + D

Identify the incorrect statement.

C is the thermodynamically stable product.

D is kinetically stable product.

Formation of A and B from C has highest enthalpy of activation.

Activation enthalpy to form C is 5 kJ mol^–1 less than that to form D.

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E_a = (D → C)

= 15 – 0 = 15 kJ mol^–1

E_a = (A + B) → C = 15 kJ mol^–1

E_a = (A + B) → D = 10 kJ mol^–1

E_a = C → (A + B) = 20 kJ mol^–1 (high activation enthalpy in the reaction)

$∴$ Activation enthalpy to form C is 5 kJ mol^–1 more than that of form D.