9.45


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nelms6678
Posts: 53
Joined: Fri Sep 29, 2017 7:07 am

9.45

Postby nelms6678 » Wed Feb 07, 2018 11:27 am

Find the entropy of the surrounding and the system for:
Freezing of 1.00 lol C2H5OH

Would you use the equation delta H over T, just like if it were melting?

Yashaswi Dis 1K
Posts: 56
Joined: Fri Sep 29, 2017 7:04 am

Re: 9.45

Postby Yashaswi Dis 1K » Wed Feb 07, 2018 11:42 am

Yes, but you use -delta Hfus for delta H because it's freezing, not melting and keep the temperature the same. Hope that helps!

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

Re: 9.45

Postby Eli Aminpour 2K » Wed Feb 07, 2018 3:35 pm

yes, you can use that equation as long as temperature is constant.

LMendoza 2I
Posts: 41
Joined: Sat Jul 22, 2017 3:00 am

Re: 9.45

Postby LMendoza 2I » Tue Feb 13, 2018 6:17 pm

Do you use -deltaHfus for the system since it's releasing heat because it is freezing?


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