Work max and delta G






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Jordan_Wesson_2J
Posts: 59
Joined: Fri Sep 28, 2018 12:26 am

Work max and delta G

Postby Jordan_Wesson_2J » Thu Feb 21, 2019 9:01 pm

How is the maximum work and delta G equal?

Sean_Rodriguez_1J
Posts: 62
Joined: Fri Sep 28, 2018 12:17 am

Re: Work max and delta G

Postby Sean_Rodriguez_1J » Thu Feb 21, 2019 9:19 pm

Delta G is defined as the amount of energy available to do useful work (ie non expansion work) for a spontaneous process under a constant temperature and pressure. Therefore, by definition delta G equals the maximum possible work that the system can do. A proof for this exists that involves some differential calculus if you're interested.
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Parth Mungra
Posts: 72
Joined: Fri Sep 28, 2018 12:28 am

Re: Work max and delta G

Postby Parth Mungra » Thu Feb 21, 2019 9:19 pm

Remember that dG represents all the energy (from a process) that is free to do work. Essentially, this statement is saying that virtually all of the free energy calculated from the Gibbs Free Energy equation is available to do work (the maximum amount)


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