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Old Jan 15th 2009, 05:32 AM   #1
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heat transfer question help.

Hello

for part a by answer was 1674.8 JK^-1
I couldn't manage to do the parts b) , c) and d).

for b) i got far as q=mCw(delta T) and adding this this to q=mlf.
which came down to mi(4187)(10-(-20)) + mi(3.35 x 10^5)

rearranging this gave mi(125610 + 3.35 x 10^5) which doesn't come down to +mi(4.186 x 10^4)

part c i did q=mCs(delta T) which came to 2(837.4)(10-35) = -41870 which is wrong as we want -1.675 x 10^4 J

part d i was unsure about.

could someone please help me out

thanks

Kind Regards
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Old Jun 2nd 2009, 12:44 PM   #2
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Is this for a take home test?
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