Question

question 14
if the activation energy for a chemical reaction is very high, the

a. reaction will progress slowly
b. reaction will have an overall net loss of energy
c. reaction will progress quickly
d. reaction will have an overall net gain of energy
e. reactants have a lower energy than the products

Explanation:

Activation energy is the minimum energy required for a chemical reaction to occur. A higher activation energy means fewer reactant molecules have enough energy to overcome the energy barrier. This results in a slower reaction rate. Options b and d are about the overall energy change (exothermic or endothermic) which is determined by the difference in energy between reactants and products, not activation energy. Option c is incorrect as high activation energy slows the reaction. Option e is about the energy difference between reactants and products (related to exothermic/endothermic, not activation energy).

Answer:

A. reaction will progress slowly