Midterm 2013 Q7


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Cowasjee_Sanaea_3E
Posts: 27
Joined: Fri Jul 22, 2016 3:00 am

Midterm 2013 Q7

Postby Cowasjee_Sanaea_3E » Sat Feb 11, 2017 6:20 pm

The question asks to calculate K for a redox reaction at 298 K.

And it says you can solve it two ways:
However when I try and solve it using
Delta G = -RTlnK
I keep getting 1.35x10^-72 (whereas the answer is 9.2x10^-72)

Known: When solving delta G= 4.1x10^5 J/mol.

Could someone please help me out? I don't know what I'm doing wrong? (I'm also using R=8.314 J/k•mol and T=298 K)

Hannah_Chao_1D
Posts: 25
Joined: Wed Sep 21, 2016 3:00 pm

Re: Midterm 2013 Q7

Postby Hannah_Chao_1D » Sat Feb 11, 2017 7:12 pm

I did the same problem and got the same answer as you. I think there is an error in the course reader's answer.


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