In chemistry, an endothermic reaction is a chemical reaction that takes in energy or absorbs heat during the formation of a compound. The opposite reaction that releases heat (energy) is called an exothermic reaction. Both of these reactions are considered in the field of thermodynamics which studies the behaviour of energy flow in natural systems.
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what does endothermic mean
Chemistry noting or pertaining to a chemical change that is accompanied by an absorption of heat (exothermic).