Spontaneity






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Jessica Helfond 2F
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Joined: Fri Sep 28, 2018 12:16 am

Spontaneity

Postby Jessica Helfond 2F » Fri Feb 22, 2019 2:24 pm

How does Gibbs free energy relate to the spontaneity of a reaction?

Bruce Chen 2H
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Joined: Fri Sep 28, 2018 12:26 am

Re: Spontaneity

Postby Bruce Chen 2H » Fri Feb 22, 2019 2:32 pm

When delta G is negative, it is spontaneous. When it is positive, it is not.

Carissa Young 1K
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Re: Spontaneity

Postby Carissa Young 1K » Fri Feb 22, 2019 8:55 pm

Gibbs free energy can be used to determine the "spontaneity" of a reaction due to the fact Gibbs free energy change is the total energy change of the system.

Xingzheng Sun 2K
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Joined: Fri Sep 28, 2018 12:29 am

Re: Spontaneity

Postby Xingzheng Sun 2K » Sat Feb 23, 2019 6:40 pm

△G determines whether a reaction can happen spontaneously. Negative △G is spontaneous, and positive △G is not. It is also related to which way of reaction can be more stable. The lower △G is, the more stable it is.

Henry Dudley 1G
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Re: Spontaneity

Postby Henry Dudley 1G » Sat Feb 23, 2019 11:01 pm

What does it mean if delta G is 0?

Danny Zhang 4L
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Joined: Fri Sep 28, 2018 12:26 am

Re: Spontaneity

Postby Danny Zhang 4L » Sun Feb 24, 2019 1:24 am

I believe that the reaction is at equilibrium if delta G is zero.

Anmol_cheema_2F
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Joined: Fri Sep 28, 2018 12:26 am

Re: Spontaneity

Postby Anmol_cheema_2F » Sun Feb 24, 2019 12:47 pm

When change in Gibbs free energy is negative, the reaction is spontaneous; when delta G is positive, the reaction is not spontaneous.

Desiree1G
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Re: Spontaneity

Postby Desiree1G » Sun Feb 24, 2019 2:27 pm

If Gibbs is at 0 it is at equilibrium, if it is negative then it is exergonic meaning it is also spontaneous. If it is positive it is endergonic which means it is non-spontaneous. The lower the delta G is the more stable it is.

Erin Kim 2G
Posts: 75
Joined: Fri Sep 28, 2018 12:26 am

Re: Spontaneity

Postby Erin Kim 2G » Sun Feb 24, 2019 2:30 pm

delta G= 0 is at equilibrium
delta G >0 is not spontaneous
delta G < 0 spontaneous


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