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It is branch of chemistry which deals with the heat energy change during a chemical reaction.
Types of Thermochemical Reactions
Thermo-chemical reactions are of two types.
1. Exothermic Reactions
2. Endothermic Reactions
1. Exothermic Reaction
A chemical reaction in which heat energy is evolved with the formation of product is known as Exothermic Reaction.
An exothermic process is generally represented as
Reactants ----> Products + Heat
2. Endothermic Reaction
A chemical reaction in which heat energy is absorbed during the formation of product is known as endothermic reaction.
Endothermic reaction is generally represented as
Reactants + Heat ----> Products
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Notes for class 9 and 10
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