G(not) and G


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Johnathan Smith 1D
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Joined: Wed Sep 11, 2019 12:16 am

G(not) and G

Postby Johnathan Smith 1D » Sun Feb 23, 2020 10:16 pm

What is the difference between G(not) and G?

Tracy Tolentino_2E
Posts: 140
Joined: Sat Sep 07, 2019 12:17 am

Re: G(not) and G

Postby Tracy Tolentino_2E » Sun Feb 23, 2020 10:20 pm

G(not) is the standard Gibbs Free energy. So it's the energy in standard conditions. (1 M, 1atm, 25 degrees Celsius)
G is Gibbs Free energy in other conditions

ASetlur_1G
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Re: G(not) and G

Postby ASetlur_1G » Sun Feb 23, 2020 10:58 pm

Is it correct to say that G(not) is used at equilibrium (K value) and G is used for other conditions (Q value)?

KarineKim2L
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Joined: Fri Aug 30, 2019 12:16 am

Re: G(not) and G

Postby KarineKim2L » Sun Feb 23, 2020 11:03 pm

In addition to all of the above, the relationship between G not and G can be seen in the equation G not= G+RTlnQ.

Rafsan Rana 1A
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Re: G(not) and G

Postby Rafsan Rana 1A » Sun Feb 23, 2020 11:14 pm

Isn't the equation G = Gnot + RTlnQ ?

Jainam Shah 4I
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Re: G(not) and G

Postby Jainam Shah 4I » Sun Feb 23, 2020 11:16 pm

G(not) is at standard conditions whereas G itself doesn't have to be at standard conditions.

Sean Tran 2K
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Re: G(not) and G

Postby Sean Tran 2K » Sun Feb 23, 2020 11:37 pm

G(not) represents standard Gibbs Free energy.

Leyna Dang 2H
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Re: G(not) and G

Postby Leyna Dang 2H » Mon Feb 24, 2020 12:37 am

G(not) is at standard Gibbs free energy, thus it is under standard conditions, unlike G.

Sanjana K - 2F
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Re: G(not) and G

Postby Sanjana K - 2F » Mon Feb 24, 2020 1:04 am

Rafsan Rana 1A wrote:Isn't the equation G = Gnot + RTlnQ ?


Yes, it should be delta G = delta G(naught) + RTlnQ.

Maya Beal Dis 1D
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Re: G(not) and G

Postby Maya Beal Dis 1D » Tue Feb 25, 2020 7:15 pm

In problem 5G.13 you calculate the delta G of the reaction at equilibrium and then use whether that value is positive or negative to see which way the reaction will proceed (towards reactants or products), but if the reaction is at equilibrium doesn't that mean the reaction is going both ways at the exact same rate and would therefore favor neither direction?

KaleenaJezycki_1I
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Re: G(not) and G

Postby KaleenaJezycki_1I » Tue Feb 25, 2020 7:17 pm

ASetlur_1G wrote:Is it correct to say that G(not) is used at equilibrium (K value) and G is used for other conditions (Q value)?


Yes for the most part.

BCaballero_4F
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Re: G(not) and G

Postby BCaballero_4F » Tue Feb 25, 2020 9:47 pm

ASetlur_1G wrote:Is it correct to say that G(not) is used at equilibrium (K value) and G is used for other conditions (Q value)?

Yes this is essentially correct to say

205405339
Posts: 77
Joined: Thu Jul 11, 2019 12:16 am

Re: G(not) and G

Postby 205405339 » Tue Feb 25, 2020 9:48 pm

G9not) is under standard conditions whereas G is not and G(n0t) will contribute to the value of G

Nathan Rothschild_2D
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Joined: Fri Aug 02, 2019 12:15 am

Re: G(not) and G

Postby Nathan Rothschild_2D » Wed Feb 26, 2020 12:24 pm

Naught always means 1M of solution or 1 atm at 298K (same as 25 Celsius)

Zoe Gleason 4F
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Joined: Tue Jul 23, 2019 12:15 am

Re: G(not) and G

Postby Zoe Gleason 4F » Wed Feb 26, 2020 1:25 pm

Gnaught will be under standard conditions, which are 1.0M, 1atm, and 25C.

Cindy Adiwidjaja 1B
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Joined: Sat Jul 20, 2019 12:15 am

Re: G(not) and G

Postby Cindy Adiwidjaja 1B » Sun Mar 08, 2020 10:51 pm

Whenever there is a ⁰ on anything (G, H, S), it means that that process is in Standard Conditions.


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