explain the principle of heat exchange
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Answer:
When hot body is kept in contact with cold body , then the quantity of heat lost by hot body is equal to the quantity of heat gained by cold body is called principal of heat exchange.
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Answer: Heat is transferred to and from object by three process : conduction, radiation, and convection.
Conduction is the heat traveling through a solid material.
Radiation traveling heat in the form of visible and non visible light.
Convection is the another type of heat traveling in the form of gases.
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