Gibbs free energy predicts system spontaneity from "summary" of Thermodynamics and an Introduction to Thermostatistics by Herbert B. Callen
The Gibbs free energy is a fundamental concept in thermodynamics that plays a crucial role in predicting the spontaneity of a system. By considering both the enthalpy and entropy of a system, the Gibbs free energy provides valuable insight into whether a process will occur spontaneously or requires external intervention to proceed. Spontaneity is a key concept in thermodynamics, as it determines whether a process can occur on its own without the need for external influence. The Gibbs free energy, denoted by G, is a thermodynamic potential that combines the effects of both enthalpy (H) and entropy (S) to give a more complete picture of the system's behavior. The Gibbs free energy is defined as G = H - TS, where T is the temperature of the system. This equation reflects the balance between the energy available to do work (H) and the energy unavailable to do work due to the system's disorder (TS...
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