How you do an experiment for heat is a form of energy transit, that
flows from a body at higher temperature to lower temperature ?
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By the Second law of thermodynamics..the heat flows from an higher to lower region in terms of entropy.(Entropy is the measurement of order of disorderness of a system).The entropy of a hot body is more than that of a cold one.
energy will always be transferred from the hotter to the cooler object. The objects will exchange thermal energy, until thermal equilibrium is reached,
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when we cook food in pressure cooker by placing itover a stove the heat energy changes water to steam steam in turn lift the weight on the top of the lid and whistles. this lifting of weight suggest that heat is a form of energy which is capable of doing work .
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