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Very first learning objective on 2nd page of thermodynamics

Posted: Sat Feb 29, 2020 1:38 pm
by Brian_Ho_2B
"Understand why reaction free energy depends on pressure and the equilibrium constant."
I understand the relationship between free energy and the equilibrium constant, but I'm not sure what pressure has to do with gibbs free energy. Is it referring to changing pressure by changing volume and applying Le Chatelier's principle or is it referring to a mathematical relationship that I may have missed?

Re: Very first learning objective on 2nd page of thermodynamics

Posted: Sat Feb 29, 2020 3:06 pm
by Rita Chen 1B
Maybe it's talking about delta G, which uses RT lnQ, which may depend on pressures?

Re: Very first learning objective on 2nd page of thermodynamics

Posted: Sun Mar 01, 2020 1:40 am
by 305421980
Because the equation -RTlnK includes the equilibrium constant and the constant can involve partial pressures.