Final answer:
Gibbs free energy is a measurement used to quantitate energy transfers in chemical reactions. It refers to the energy associated with a chemical reaction that is available to do work. By calculating the Gibbs free energy, we can predict the direction of a chemical reaction and determine its feasibility.
Step-by-step explanation:
Gibbs free energy (abbreviated with the letter G) is a measurement used to quantitate energy transfers in chemical reactions. It specifically refers to the energy associated with a chemical reaction that is available to do work. Gibbs free energy is a state function and can be calculated using the equation G = H - TS, where G is the Gibbs free energy, H is the enthalpy, T is the temperature, and S is the entropy. By calculating the Gibbs free energy, we can predict the direction of a chemical reaction and determine its feasibility.