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Heat transfer is the process by which thermal energy moves from a region of higher temperature to a region of lower temperature due to a temperature difference. It plays a fundamental role in natural phenomena and engineering applications such as heating, cooling, power generation, and industrial processes. The three primary modes of heat transfer are conduction, convection, and radiation, each governed by distinct mechanisms and laws. Conduction is the transfer of heat through a material without any bulk movement of the _____ __________ _________ ______ _________ __________ ____ _________ __________ ______.
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