## 9.43

$\Delta S = \frac{q_{rev}}{T}$

Angela 1K
Posts: 80
Joined: Fri Sep 29, 2017 7:05 am

### 9.43

I was wondering where the solutions manual got 75.3 J/Kmol as the Cp,m of water from.

Thanks.

Eli Aminpour 2K
Posts: 50
Joined: Fri Sep 29, 2017 7:04 am

### Re: 9.43

It is on0 the sheet of constants and formula's we are given at the start of every test. (Cp(water) = 75.3 J. K-1mol-1)

Ashin_Jose_1H
Posts: 51
Joined: Fri Sep 29, 2017 7:04 am

### Re: 9.43

Appendix 2: Experimental Data of Inorganic Substances. Page A12 (for me) in the textbook. It's also on the formula sheet.

ConnorThomas2E
Posts: 57
Joined: Fri Sep 29, 2017 7:04 am

### Re: 9.43

It is a constant that the book provides you or that Dr. Lavelle will give to us before a test.

104969854
Posts: 36
Joined: Fri Sep 29, 2017 7:05 am

### Re: 9.43

We are given all the cp or cv values that we'll need for calculations! Don't worry about this too much

Wenting Hu 2H
Posts: 33
Joined: Fri Sep 29, 2017 7:06 am

### Re: 9.43

I was wondering the same thing because for Table 9.2, it says 75.3 is the standard molar entropy of the water at 50 degrees C. What happened to the water at 20 degrees?