Question

As a chemical reaction proceeds toward equilibrium, the free energy of the system decreases at constant temperature and constant pressure. true or fals

Answer 1

Answer:

True

Explanation:

GIBBS FREE ENERGY (G) Gibbs free energy is a thermodynamic function It is a state function. G = H - TS At constant temperature At constant pressure and temperature An increase in S corresponds to a decrease in free energy

Constant free energy (G) P, T The important thing about free energy is that whenever the pressure and temperature are constant, we can determine the spontaneity of a process only in terms of the thermodynamic properties of the system G = H - TS The Free energy change is a measure of the change in the total entropy of a system and its environment at constant temperature and pressure. Spontaneous processes at constant temperature and pressure are accompanied by a decrease in free energy.

At constant temperature and pressure, the direction of spontaneous change is towards the lowest free energy. The equilibrium state of a system corresponds to the lowest point of the free energy curve .