question_answer

Consider the given plot of enthalpy of the following reaction between A and B. \[A+B\to C+D\] Identify the incorrect statement. [JEE Main 9-4-2019 Afternoon]

A) C is the thermodynamically stable product.

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

C) D is kinetically stable product.

D) Activation enthalpy to form C is \[5kJ\,mo{{l}^{-1}}\]less than that to form D.

Correct Answer: D

Solution :

\[A+B\to C+D\] Activation enthalpy for \[C=205=15kJ/mol\] Activation enthalpy for \[D=155=10kJ/mol\]