What are the types of heat transfer? Write about them.
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1) convection
2)conduction
3)radiation
Heat conduction, also called diffusion, is the direct microscopic exchange of kinetic energy of particles through the boundary between two systems.
Heat convection occurs when bulk flow of a fluid (gas or liquid) carries heat along with the flow of matter in the fluid.
Thermal radiation occurs through a vacuum or any transparent medium (solid or fluid).