Exothermic reaction- The reaction in which heat is evolved is called exothermic reaction.for example,CaO + CO2→ CaCO3 ΔH=-178kJmol-1Endothermic reaction- The reaction in which heat is absorbed is called endothermic reaction.for example,2NH3 → 3N2+ H2 ΔH=918kJmol-1

Q. 364.4( 8 Votes )

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Class 11th Chemistry - Exemplar

Answer :

Exothermic reaction- The reaction in which heat is evolved is called exothermic reaction.

for example,

CaO + CO₂→ CaCO₃ ΔH=-178kJmol^-1

Endothermic reaction- The reaction in which heat is absorbed is called endothermic reaction.

for example,

2NH₃ → 3N₂+ H₂ ΔH=918kJmol^-1

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