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What do you mean by exothermic and endothermic |
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Answer» Exothermic reaction: The reaction which is accompanied with evolution of heat is known as exothermic reaction.CaO + CO2\xa0→ CaCO3, ΔH= -178.3 kJ mol-1Endothermic reaction:\xa0The reaction which is accompanied with absorption of energy is known as endothermic reaction, e.g.,2NH3\xa0→ N2\xa0+ 3H2; ΔH = +91.8 kJ mol-1 Exothermic rxns are those rxns in which heat is released or endothermic rxns are those rxns in which heat is absorbed |
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