Pressure and Volume on Spontaneity






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Justin Lau 1D
Posts: 51
Joined: Sat Jul 22, 2017 3:00 am

Pressure and Volume on Spontaneity

Postby Justin Lau 1D » Mon Jan 29, 2018 7:32 pm

Does pressure and/or volume affect the spontaneity of a reaction? Is it because entropy is changing when these factors change?

Samantha Kan 2L
Posts: 30
Joined: Sat Jul 22, 2017 3:00 am

Re: Pressure and Volume on Spontaneity

Postby Samantha Kan 2L » Mon Jan 29, 2018 7:34 pm

Yes, pressure and volume do affect the spontaneity of a reaction because they contribute to entropy. For example, when a system is expanding, there is more area and translational energy. This results in a higher entropy.

Daniisaacson2F
Posts: 30
Joined: Sat Jul 22, 2017 3:00 am

Re: Pressure and Volume on Spontaneity

Postby Daniisaacson2F » Mon Jan 29, 2018 7:42 pm

Yes, you have to take into account the different ways that you can solve for deltaS. Since deltaG is the spontaneity of a reaction, it depends on S so it also depends on pressure and volume.


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