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# thermo question Watch

1. 75g of Bovine Brain extract was heated from 277 K to 310 K at constant pressure by supplying 125 kJ of energy as heat. Calculate q, ?H and the heat capacity of the sample. The answer is 3788 J K-1. Any idea how to get there?? Thanks!
2. Hahaha whoever wrote that question is a legend! Where did you find it?
Sorry, i've love to help but i've forgotten the formula
Once you find that just rearrange it and put in what you know.
3. (Original post by KissMyArtichoke)
Hahaha whoever wrote that question is a legend! Where did you find it?
Sorry, i've love to help but i've forgotten the formula
Once you find that just rearrange it and put in what you know.
haha got it off my teacher! :s thanks anyway!
4. (Original post by <3 tan xxxxx)
haha got it off my teacher! :s thanks anyway!
I'll look at this tomorrow if you still need help, I just need to dig up my old AS book.
5. E=mcdT

so you've got the mass, the temperature change and the energy, specific heat is just a simple substitution.

for dH you'd then need the Mr and mass of the fuel.

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Updated: December 3, 2010
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