Question

in an exothermic reaction :
a) energy is liberated.
b) energy is absorbed
c) no energy is produced
d) none of these
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Answer 1

Answer:

option A

Energy is liberated.

Explanation:

If a chemical reaction releases energy then it is called EXOTHERMIC REACTION or the vice versa that Exothermic reaction releases energy or energy is liberated in an exothermic reaction.

There are two type of chemical reaction :

Exothermic chemical reaction

Endothermic chemical reaction.

Exothermic reaction produces heat. Its easy to remember the two reactions and their outcomes

1. Exo mean Outside , hence energy is released.

2. Endo mean Inside , hence energy is absorbed.

In exothermic reactions, more energy is released when the bonds are formed in the products than is used to break the bonds in the reactants. Exothermic reactions are accompanied by an increase in temperature of the reaction mixture.