## 5G.15

$\Delta G^{\circ}= \Delta H^{\circ} - T \Delta S^{\circ}$

$\Delta G^{\circ}= -RT\ln K$

$\Delta G^{\circ}= \sum \Delta G_{f}^{\circ}(products) - \sum \Delta G_{f}^{\circ}(reactants)$

Skyllar Kuppinger 1F
Posts: 52
Joined: Thu Jul 25, 2019 12:16 am

### 5G.15

Can someone tell me what I'm doing wrong? I did 5G.13 right and it's identical to this one. The book says the answer is -27 but I'm getting -2.7. Why am I one decimal off?
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Brian_Ho_2B
Posts: 221
Joined: Fri Aug 09, 2019 12:16 am

### Re: 5G.15

I'm almost certain that this is an error in the textbook; I've done that same problem twice and I've gotten your answer twice. You may want to see Prof. Lavelle's updated solutions manual errors on his website to see if this is one of the errors. But I can assure you that your work is correct.

Skyllar Kuppinger 1F
Posts: 52
Joined: Thu Jul 25, 2019 12:16 am

### Re: 5G.15

Brian_Ho_2B wrote:I'm almost certain that this is an error in the textbook; I've done that same problem twice and I've gotten your answer twice. You may want to see Prof. Lavelle's updated solutions manual errors on his website to see if this is one of the errors. But I can assure you that your work is correct.

Thank you so much! For some reason I didn't see it in his solutions manual errors

Matthew ILG 1L
Posts: 112
Joined: Sat Aug 17, 2019 12:15 am

### Re: 5G.15

Skyllar Kuppinger 1F wrote:
Brian_Ho_2B wrote:I'm almost certain that this is an error in the textbook; I've done that same problem twice and I've gotten your answer twice. You may want to see Prof. Lavelle's updated solutions manual errors on his website to see if this is one of the errors. But I can assure you that your work is correct.

Thank you so much! For some reason I didn't see it in his solutions manual errors

I was getting the same solution over and over again as well and couldn't figure out why. This helps a lot. Thank you.