Example of Heat Is Absorbed Class 10
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Explanation:
Endothermic reactions are the chemical reactions which proceed with the absorption of heat energy.
Consider the reaction A+B+q→C+D.
Here, q is the heat energy absorbed during this exothermic reaction.
The enthalpy change for this reaction is ΔH
rxn
=H
products
−H
reactants
=+q
Positive sign indicates that heat is absorbed in the reaction.
Hence, H
reactants
+q=H
products
Thus, in an endothermic reaction, the total enthalpy of reactant is smaller than that of products.
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