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In a hairdryer, an exothermic reaction occurs primarily through the conversion of electrical energy into thermal energy. When the hairdryer is turned on, electricity flows through a heating element, which heats up as resistance causes energy loss in the form of heat. This heat is then blown out by a fan, efficiently drying hair as moisture evaporates. The process is exothermic because it releases heat, warming the surrounding air and the hair.

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1d ago

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