## free energy and work

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

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

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

Jasleen Kahlon
Posts: 52
Joined: Wed Nov 21, 2018 12:19 am

### free energy and work

What is the relationship between free energy and work?

Justin Sarquiz 2F
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Joined: Fri Aug 30, 2019 12:15 am

### Re: free energy and work

If delta G is negative, then that means that free energy is released. That released energy can be used to do work.

AveryAgosto
Posts: 76
Joined: Wed Sep 18, 2019 12:16 am

### Re: free energy and work

when energy is released, that energy can be used to do work. So if the reaction has a -delta G you know that energy is being released.

Christineg1G
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### Re: free energy and work

Gibbs' free energy corresponds to the amount of work that can be performed in a given system. A positive delta G means that the system is not spontaneous, and a negative delta G means that the system is spontaneous.

Esha Chawla 2E
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Joined: Thu Jul 25, 2019 12:17 am

### Re: free energy and work

Jasleen Kahlon wrote:What is the relationship between free energy and work?

If Gibbs free energy, or delta G, is negative, then it releases free energy, which can then be put towards doing work. This is why we have the relationship delta G = -w(max).

Paul Hage 2G
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Joined: Thu Jul 25, 2019 12:17 am

### Re: free energy and work

Delta G represents the maximum work that can be done by a voltaic cell. This is why it is possible to equate the two equations w(max)=-nFE(max) and deltaG(cell)=-nFE(cell).