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Gabriel Ordonez 2K
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Joined: Sat Jul 20, 2019 12:15 am


Postby Gabriel Ordonez 2K » Sun Mar 08, 2020 7:31 pm

What are the different, but essential, equations for gibbs free energy in thermodynamics? How can we manipulate the Gibbs Free energy equation with the R constant?

Kate Osborne 1H
Posts: 102
Joined: Fri Aug 30, 2019 12:16 am

Re: Equations

Postby Kate Osborne 1H » Sun Mar 08, 2020 7:35 pm

∆G° = ∆H° - T∆S°and ∆G° = - RT ln K are the essential equations for thermodynamics

Posts: 102
Joined: Thu Jul 25, 2019 12:16 am

Re: Equations

Postby CalvinTNguyen2D » Sun Mar 08, 2020 9:15 pm

By using these two equations, we can set both of them equal to each other, and manipulate them to derive the Van't Hoff Equation.

Mai V 4L
Posts: 111
Joined: Fri Sep 28, 2018 12:23 am

Re: Equations

Postby Mai V 4L » Mon Mar 09, 2020 2:17 pm

anyone got any tricks to remember these? having a hard time!

Posts: 95
Joined: Sat Aug 17, 2019 12:17 am

Re: Equations

Postby AniP_2D » Tue Mar 10, 2020 3:16 pm

These equations are all on the formula sheet so there isn't really a need to memorize them.

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Joined: Mon Nov 18, 2019 12:18 am

Re: Equations

Postby WGaines_2E » Tue Mar 10, 2020 9:42 pm

also G=-nFE

Astrid Lunde 1I
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Joined: Sat Sep 07, 2019 12:16 am

Re: Equations

Postby Astrid Lunde 1I » Tue Mar 10, 2020 9:54 pm

∆G° = ∆H° - T∆S°and ∆G° = - RT ln K and G=-nFE are essential, but are also on your equation sheet.

Julia Holsinger_1A
Posts: 50
Joined: Tue Feb 26, 2019 12:16 am

Re: Equations

Postby Julia Holsinger_1A » Sat Mar 14, 2020 3:55 pm

In the text book I am seeing lots of equations that have (delta)G sub r, what does the r mean? I think its just reaction but I am not positive.

Alan Cornejo 1a
Posts: 98
Joined: Fri Aug 30, 2019 12:15 am

Re: Equations

Postby Alan Cornejo 1a » Sun Mar 15, 2020 8:03 am

I would say there are three main ones, ∆G° = ∆H° - T∆S°and ∆G° = - RT ln K and G=-nFE . All of these are given on the constants sheet, and so being able to derive these equations and manipulate them to find them to your suitable variable you need to calculate is what you will most be needing to do

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