February 20, 2017

Homework Help: Physics - calorie

Posted by Mary on Sunday, September 20, 2009 at 4:45pm.

This was my problem:
4.) The specific heat capacity of copper is 0.092 cal/g*oC. Show that the amount of heat needed to raise the temperature of a 10-g piece of copper from 0oC to 100oC is 92 cal. How does this compare with the heat needed to raise the temperature for the same mass of water through the same temperature difference?

This is how I worked it out:

cm(T change) = Q

.092(10g)100oC = Q

92g oC = Q

But I don't understand how 92g oC equals calories. Thanks!

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