Is sublimation of camphor (crystals)is exothermic process
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endothermic
Evaporation of water and sublimation of camphor are examples of endothermic reactions.
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sublimation of camphor is an endothermic process because here the heat energy from the surrounding is absorbed to convert camphor from solid to gas.
Remember that whenever a solid is converted into fluid(air or liquid) energy is absorbed so as to overcome the inter molecular force of attraction and vice versa
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