Gibb's Free Energy






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Jessica Castellanos
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Joined: Sat Aug 24, 2019 12:17 am
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Gibb's Free Energy

Postby Jessica Castellanos » Sun Feb 16, 2020 6:27 pm

What exactly is Gibb's Free Energy? What is it calculating?

MinuChoi
Posts: 100
Joined: Wed Sep 18, 2019 12:15 am

Re: Gibb's Free Energy

Postby MinuChoi » Sun Feb 16, 2020 6:50 pm

Gibb's Free Energy is energy available to do work in reaction. It's different from other energy functions (like enthalpy) because it takes energy loss due to entropy into account, since real work is not 100% reversible.
It's mainly used to tell If a reaction is spontaneous.

William Francis 2E
Posts: 101
Joined: Wed Sep 18, 2019 12:20 am

Re: Gibb's Free Energy

Postby William Francis 2E » Sun Feb 16, 2020 7:07 pm

Conceptually, I think it may be most important to think about Gibb's Free Energy as a convenient state function used to determine whether a reaction will proceed spontaneously. As previously stated, it is a measure of energy available to do work in a system.

Dan M -3E
Posts: 101
Joined: Wed Sep 18, 2019 12:19 am

Re: Gibb's Free Energy

Postby Dan M -3E » Sun Feb 16, 2020 9:08 pm

Gibbs Free Energy is the most accurate way of measuring whether a reaction will be spontaneous. If it's negative, the reaction is spontaneous. If it's positive, the reaction isn't spontaneous.

Lauren Stack 1C
Posts: 100
Joined: Sat Aug 17, 2019 12:18 am

Re: Gibb's Free Energy

Postby Lauren Stack 1C » Sun Feb 16, 2020 9:08 pm

Gibbs Free Energy is the amount of thermodynamic potential energy available to do work. The equation for it is usually used to determine the energetics of a system, such as if it is spontaneous (Negative deltaG) or not.

Eesha Sohail 1D
Posts: 100
Joined: Sat Aug 17, 2019 12:16 am

Re: Gibb's Free Energy

Postby Eesha Sohail 1D » Sun Feb 16, 2020 9:09 pm

Can one actually calculate amounts of G contained in a substance, or only transferred amounts?

Alondra
Posts: 36
Joined: Tue Feb 26, 2019 12:15 am

Re: Gibb's Free Energy

Postby Alondra » Sun Feb 16, 2020 9:48 pm

This refers to the energy available to do work.

RasikaObla_4I
Posts: 100
Joined: Thu Jul 25, 2019 12:15 am

Re: Gibb's Free Energy

Postby RasikaObla_4I » Sun Feb 16, 2020 9:52 pm

Gibbs Free Energy is the amount of free energy available to do work. It is a state function, so only the initial and final amounts matter.


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