Question
Thu December 06, 2012 By:

Why does heat transfer from hot body to cold body? Can it transfer in the opposite manner?

Expert Reply
Fri December 07, 2012
yes if u want to see it molecularly, if u heat a body, its molecules start vibrating. So if u compare two simillar bodies at temperatures T1 and T2 where T1>T2 then, in first body, molecules vibrate more aggresively than second. clearly, they cannot gain more energy to less aggresively vibrating molecules. They can only give energy.
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