## What is the difference between entropy and free energy?

$\Delta G^{\circ}= \Delta H^{\circ} - T \Delta S^{\circ}$

$\Delta G^{\circ}= -RT\ln K$

$\Delta G^{\circ}= \sum \Delta G_{f}^{\circ}(products) - \sum \Delta G_{f}^{\circ}(reactants)$

John_Richey_4A
Posts: 69
Joined: Fri Sep 28, 2018 12:27 am

### What is the difference between entropy and free energy?

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Marcela Udave 1F
Posts: 66
Joined: Fri Sep 28, 2018 12:16 am

### Re: What is the difference between entropy and free energy?

Gibbs free energy is energy available to do work and can be used to determine the spontaneity of a reaction. Entropy is a measure of the molecular disorder of a system.

Mukil_Pari_2I
Posts: 87
Joined: Fri Sep 28, 2018 12:29 am

### Re: What is the difference between entropy and free energy?

I would add that Gibbs free energy is the maximum of reversible work that may be performed by a thermodynamic system at a constant temperature and pressure. Entropy is a thermodynamic function that describes the randomness and disorder of molecules based on the number of different arrangements available to them in a given system or reaction.