Question

Which type of spontaneous reactions is more common?

a) Endothermic reactions

b) Exothermic reactions

c) Both types are equally common

d) Spontaneous reactions are rare

Answer 1

Exothermic reactions are more common spontaneous reactions as they release energy and increase entropy, making the products more stable.

Step-by-step explanation:

The type of spontaneous reactions that is more common are exothermic reactions. These reactions involve a release of energy to the surroundings and typically occur more frequently in nature. The combustion of gasoline or a bonfire, for example, are exothermic processes where the reaction releases energy, usually in the form of heat, and results in the products being in a more stable state. This release of energy and increase in entropy contribute to the spontaneity of the reaction. In contrast, endothermic reactions require an input of energy and are less common to be spontaneous, though they can still occur under certain conditions.