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Helen Shi 1J
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Joined: Sat Jul 22, 2017 3:00 am


Postby Helen Shi 1J » Sat Jan 13, 2018 11:25 am

When the textbook refers to the internal energy in example 8.4 on pg 271, is it refering to the heating device or the calorimeter? If it is the calorimeter, wouldn't the change in the internal energy be positive?

Curtis Tam 1J
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Joined: Thu Jul 13, 2017 3:00 am

Re: Calorimeter

Postby Curtis Tam 1J » Sat Jan 13, 2018 1:37 pm

It's referring to the calorimeter. In this case, internal energy would be negative because heat is given off by the reaction. And because the system is at constant volume, deltaU is equal to q. :)

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