Final answer:
Free energy, endergonic reactions, exergonic reactions, and entropy are all related through the laws of thermodynamics.
Step-by-step explanation:
The relationship among the terms free energy, endergonic reactions, exergonic reactions, and entropy can be understood through the laws of thermodynamics. Free energy is the energy available to do work in a system. Endergonic reactions require an input of energy to proceed, while exergonic reactions release energy. Entropy is a measure of the randomness or disorder within a system. In general, endergonic reactions are associated with an increase in free energy and a decrease in entropy, while exergonic reactions are associated with a decrease in free energy and an increase in entropy.