Calc heat functions


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Mya Majewski 1L
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Calc heat functions

Postby Mya Majewski 1L » Tue Feb 09, 2016 2:18 pm

When do you know when to use q=-q, mcdeltaT=-mcdeltaT, or q=ndeltaH + mcdeltaT????

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Re: Calc heat functions

Postby Chem_Mod » Tue Feb 09, 2016 8:12 pm

q=-q just means that the heat is being lost/gained by a certain component and gained/lost by another component. You would use mC and/or n depending on whether or not the components in question are going through phase changes, with which you use n, or are just simply increasing the temperature (ie. liquid going from 273K>373K) use mC. If both a phase change and an increase in temperature are occurring use both.

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