Question #f0842
2 Answers
Most endothermic reactions are not spontaneous
Explanation:
Some endothermic reactions are spontaneous because of a gain in entropy that more than overcomes the gain in heat energy.
An exothermic reaction results in a loss of heat energy to the surrounding environment. This is the direction of heat in the universe. So an endothermic reaction goes against the normal direction of heat in the universe.
It is much more likely that an exothermic reaction will be spontaneous than an endothermic reaction. However the gain in entropy is the normal direction of the universe and can overcome a gain in heat energy.
No
Explanation:
Nature favors reactions that are exothermic and have a positive entropy change. In other words, the most favorable reaction would have
This is because nature favors a lower energy, and an exothermic reaction by definition is going to a lower energy. Nature also favors disorder. If
An endothermic reaction (
If