An elementary process has an activation energy of 92 kJ/mol .If the enthalpy change for the reaction is -62 kJ/mol, What is the activation energy for the reverse reaction?
A) 154 kJ/mol
B) 62 kJ/mol
C) 92 kJ/mol
D) 30 kJ/mol

Question

Quizplus · Accepted Answer

The activation energy for the reverse reaction can be found by adding the enthalpy change of the reaction to the activation energy of the forward reaction. Thus, $92 \, \text{kJ/mol} + 62 \, \text{kJ/mol} = 154 \, \text{kJ/mol}$.

An Elementary Process Has an Activation Energy of 92 KJ/mol