Question

Depending upon the energy realised or absorbed chemical changes are of how many types​

Answer 1

Learning Objective

Describe the types of energy changes that can occur in chemical reactions

Key Points

Chemical reactions often involve changes in energy due to the breaking and formation of bonds.

Reactions in which energy is released are exothermic reactions, while those that take in heat energy are endothermic.

Terms

exothermicA description of a chemical reaction that releases heat energy to its surroundings.

endothermicA description of a chemical reaction that absorbs heat energy from its surroundings.

enthalpyIn thermodynamics, a measure of the heat content of a chemical or physical system. The change in enthalpy of a chemical reaction is symbolized as ΔH

Answer 2

Based upon the heat energy released or absorbed, chemical reactions are of two types.

1.Exothermic Reaction : That chemical reaction in which heat is released is called an Exothermic Reaction.

2 Endothermic Reaction: That chemical reaction In which heat energy is absorbed is called an Endothermic Reaction .

Explanation:

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