Question

transmission of heat. defination should be perfect and short​

Answer 1

Answer:

your answer

Explanation:

here ur short definition

Heat transfer is the movement of heat from one substance or material to another..

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Answer 2

Transmission of heat can occur due to conduction, convection and radiation. In Solid substances, heat is transferred by direct contact which is know as Conduction. Convection occurs when particles with a lot of heat energy in a liquid or gas move and take the place of particles with less heat energy. Liquids and gases expand when they are heated. Radiation is energy that travels in the form of waves or high-speed particles. Particulate radiation happens when an unstable atom disintegrates.

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