Select the TRUE statement concerning rate of reactions.
A) A large activation energy indicates high heat of reaction.
B) A small activation energy indicates high heat of reaction.
C) A large activation energy indicates low heat of reaction.
D) A small activation energy indicates low heat of reaction.
E) The activation energy is independent of the heat of reaction.

Question

Quizplus · Accepted Answer

The activation energy of a reaction is the energy barrier that must be overcome for the reaction to proceed, while the heat of reaction (enthalpy change) is the difference in energy between reactants and products. These two properties are independent of each other; a reaction can have a high activation energy and either an exothermic or endothermic heat of reaction.

Select the TRUE Statement Concerning Rate of Reactions