Asked by Tom
How much heat is needed to be supplied to a 3.5 kg cylindrical rod if its volume changes by 1/4 of its original size? Assume that it is initially at 20K and that c = 2 cal/g.C and α = 8x10^2/C
Answers
Answered by
bobpursley
Heat to do what? expand it a certain length? heat it to a certain temperature?
If you are just looking at heat content for a specific temperature change, heat is directly proportional to mass, which is directly related to volume.
heat then equals 1/4 of the original.
But I suspect you are looking at something else.
If you are just looking at heat content for a specific temperature change, heat is directly proportional to mass, which is directly related to volume.
heat then equals 1/4 of the original.
But I suspect you are looking at something else.
Answered by
Tom
the problem stated that the rod has expanded 1/4 its volume. I am looking for the heat supplied that has made its volume expand. please help :D
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