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What does one mean by exothermic and endothermic reactions? Give examples.

NCERT Class 10th Science Chapter 1 Chemical Reactions and Equations


The exothermic reaction is the reaction in which energy is released while in endothermic reactions energy is used. exothermic e.g. respiration and endothermic is photosynthesis
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The reaction in which heat is evolved is called exothermic reaction
e.g  c+02 ----> co2 +heat
the reaction in which heat is absorbed is aclled endothermic
e.g n2 +o2 +heat------> 2no
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