self test 8.7B

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Hailey Johnson
Posts: 31
Joined: Wed Nov 16, 2016 3:04 am

self test 8.7B

Postby Hailey Johnson » Sun Jan 21, 2018 4:05 pm

Hi I'm doing the practice problems in the book and there isn't an answer available for self-test 8.7B. Can anyone who did that problem tell me what the change in enthalpy is?

Harrison Wang 1H
Posts: 50
Joined: Fri Sep 29, 2017 7:07 am

Re: self test 8.7B

Postby Harrison Wang 1H » Sun Jan 21, 2018 4:12 pm

part a is -30 because the reaction is exothermic, part b is +40 because work is being done on the system, so the internal energy is 40-30=10kJ

Rana YT 2L
Posts: 49
Joined: Thu Jul 27, 2017 3:01 am

Re: self test 8.7B

Postby Rana YT 2L » Mon Jan 22, 2018 11:13 am

the answers for the B portions of the self test questions can be found in the back of the book under answers> self-test B

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