sapling problems assignment 3

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JosephineF
Posts: 49
Joined: Wed Sep 18, 2019 12:17 am

sapling problems assignment 3

Postby JosephineF » Thu Feb 06, 2020 11:24 am

Does anyone know why in some sapling problems of assignment 3 the equation for q is q=nCdeltaT and then other times its just q=CdeltaT? They remove the quantity of the substance in some problems but im having trouble finding out why they do that.

Thanks!

Aman Sankineni 2L
Posts: 103
Joined: Fri Aug 30, 2019 12:17 am

Re: sapling problems assignment 3

Postby Aman Sankineni 2L » Thu Feb 06, 2020 1:14 pm

C in C∆T is heat capacity, while C in mC∆T is specific heat (Cs). C = mass x Cs, so those two equations are essentially equivalent. You use heat capacity when you don't have a total mass. That is if you know the total mass of the system, you can use the specific heat capacity. In most problems where you use C∆T, they bring up a calorimeter and the change in temperature. So, you can get q by multiplying them together.


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