## Free Energy and Work

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

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

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

TanveerDhaliwal3G
Posts: 105
Joined: Fri Aug 30, 2019 12:17 am

### Free Energy and Work

What is the relationship between free energy and work? This is one of the learning objectives from Thermodynamics.

Aliya Jain 2B
Posts: 101
Joined: Wed Sep 11, 2019 12:16 am

### Re: Free Energy and Work

Im pretty sure that if there is a free expansion, work equals zero because the system does not have to counteract a compressive force

Deepika Reddy 1A
Posts: 125
Joined: Thu Jul 11, 2019 12:15 am

### Re: Free Energy and Work

Free energy is the energy that is available to do work.

sarahforman_Dis2I
Posts: 109
Joined: Sat Aug 17, 2019 12:18 am

### Re: Free Energy and Work

TanveerDhaliwal3G wrote:What is the relationship between free energy and work? This is one of the learning objectives from Thermodynamics.

From what I understand, the free energy is the amount of energy that is available to do work. When talking about energy, energy can be in the form of heat, friction ext. Free energy is by definition solely the amount of energy available to do work in a system. I hope this helps!

Shail Avasthi 2C
Posts: 101
Joined: Fri Aug 30, 2019 12:17 am

### Re: Free Energy and Work

The released free energy is the maximum amount of energy that can be used as work. In reality, it can't all be perfectly utilized, but we calculate it that way.

Eva Zhao 4I
Posts: 101
Joined: Sun Sep 29, 2019 12:16 am

### Re: Free Energy and Work

Free energy is the maximum amount of energy from a system that can be used to perform useful work, in other words, work not associated with the expansion of a system.