Spontaneous Reaction






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ng1D
Posts: 43
Joined: Wed Sep 18, 2019 12:17 am

Spontaneous Reaction

Postby ng1D » Fri Feb 07, 2020 10:44 pm

How do you how Gibbs Free Energy change accompanying a process is related to the direction of a spontaneous reaction? Does it mean that when ∆G is negative, a reaction is spontaneous?

Shannon Asay 1C
Posts: 102
Joined: Fri Aug 09, 2019 12:16 am

Re: Spontaneous Reaction

Postby Shannon Asay 1C » Fri Feb 07, 2020 10:52 pm

Yes, when delta G is negative, the reaction is spontaneous. Dr. Lavelle proved this today when he showed how the entropy of the universe would increase.

005324438
Posts: 51
Joined: Sat Aug 24, 2019 12:16 am

Re: Spontaneous Reaction

Postby 005324438 » Sat Feb 08, 2020 9:06 pm

Yes exactly, when ΔG is negative the reaction is favorable, and when it is positive it is unfavorable.

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

Re: Spontaneous Reaction

Postby Shail Avasthi 2C » Sat Feb 08, 2020 9:51 pm

When ΔG is negative, the reaction is spontaneous.

BritneyP- 2c
Posts: 101
Joined: Sat Sep 14, 2019 12:15 am

Re: Spontaneous Reaction

Postby BritneyP- 2c » Sat Feb 08, 2020 11:09 pm

Yes, when delta G is negative the reaction is spontaneous which is more favorable that when it is positive and not spontaneous.

Andres Merlos 2L
Posts: 46
Joined: Wed Sep 18, 2019 12:17 am

Re: Spontaneous Reaction

Postby Andres Merlos 2L » Sun Feb 09, 2020 12:42 pm

Yes, when the deltaG is negative, this gives a spontaneous and more favorable reaction.

TimVintsDis4L
Posts: 104
Joined: Sat Aug 17, 2019 12:17 am

Re: Spontaneous Reaction

Postby TimVintsDis4L » Sun Feb 09, 2020 1:04 pm

By being Negative, we know that this is an exothermic reaction. As it is an exothermic reaction, we don't need and input of energy for it to proceed. As a result, the reaction is favorable and thus, spontaneous.

Noe BM 1J
Posts: 50
Joined: Sat Sep 07, 2019 12:17 am

Re: Spontaneous Reaction

Postby Noe BM 1J » Sun Feb 09, 2020 3:19 pm

Can someone please explain how a negative delta G makes a reaction favorable?

005324438 wrote:Yes exactly, when ΔG is negative the reaction is favorable, and when it is positive it is unfavorable.

Justin Quan 4I
Posts: 104
Joined: Sat Sep 14, 2019 12:17 am

Re: Spontaneous Reaction

Postby Justin Quan 4I » Mon Feb 10, 2020 1:57 pm

Image
When ∆G is negative, the reaction is spontaneous. When ∆G is positive, the reaction is non-spontaneous. The picture above helps organize how Gibbs free energy changes under different conditions.


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