## q=mCT vs q=cT

$\Delta U=q+w$

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Joined: Wed Sep 21, 2016 2:58 pm

### q=mCT vs q=cT

How do you know which one to use?/what is the difference? For example, in winter 2015 final 1B you use q=mCT but in 1D you use q=cT.

Emily Wang 1H
Posts: 26
Joined: Sat Jul 09, 2016 3:00 am
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### Re: q=mCT vs q=cT

You use q=mCT when finding the heat of a particular substance with a mass, change in temp, and specific heat capacity. However when solving a problem with a bomb calorimeter, the mass is not necessary to solve for a value. A more specific notation would be q(calorimeter) = C(calorimeter)T