Respuesta :
Answer:
Because with Gibbs free energy we can determine the spuriousity of reaction occurrence
Explanation:
Gibbs energy: is a thermodynamic potential that has units of energy that gives the condition of equilibrium and spontaneity for a chemical reaction (at constant pressure and temperature).
In the chemical thermodynamics of reactions and in non-cyclic processes, there are four useful quantities called "thermodynamic potentials". These are internal energy, enthalpy, Helmholtz free energy and Gibbs free energy.
While Entropy is a thermodynamic function that is a measure of the unusable part of the energy contained in a system or matter. It serves to measure the degree of disorder within a process and allows us to distinguish useful energy, which is what becomes entirely work, of useless, which is lost in the environment.
The reasons why Gibbs Energy is used instead of considering the total entropy change are;
- Gibbs energy express the changes that ONLY take place in the system, without the surroundings.
- Gibbs's energy is useful in telling us the amount of energy that is left
Importance of Gibbs Energy
Gibbs Energy is defined as a thermodynamic potential which is helpful in calculating the maximum reversible work that may be performed at constant temperature and pressure by a thermodynamic system.
Now, the reasons why Gibbs Energy is used instead of considering the total entropy change are;
1. Gibbs energy express the changes that ONLY take place in the system, without the surroundings. It is easier to look at the system than the surroundings, because we are using criteria that only refers to the system.
2. Gibbs's energy is useful in telling us the amount of energy that is left to bring further change due to the fact that energy is always lost in the form of heat during phase change.
Read more about Gibbs Energy at; https://brainly.com/question/10012881
