If heat energy is absorbed by the system during a chemical reaction, the reaction is said to be:
A) at equilibrium.
B) endergonic.
C) endothermic.
D) exergonic.
E) exothermic.

Question

Quizplus · Accepted Answer

Endothermic reactions absorb heat energy, while exothermic reactions release heat energy. At equilibrium, the reaction rates of the forward and reverse reactions are equal, so there is no net absorption or release of heat energy. Endergonic and exergonic reactions refer to the overall change in free energy of a reaction, not the absorption or release of heat energy.

If Heat Energy Is Absorbed by the System During a Chemical