Cl + Cl Cl_2 , this is an example for .......... - Vidyadip

MCQ

$\ce{Cl + Cl \rightarrow Cl_2},$ this is an example for $ ..........$

A
Endothermic reaction
✓
Exothermic reaction
C
Either exothermic or endothermic
D
Neither exothermic nor endothermic

✓

Answer

Correct option: B.

Exothermic reaction

$\ce{Cl^. + Cl^. \rightarrow Cl : Cl}$
As two Chlorine atoms come together their electrostatic energy decreases.
According to the law of conservation of energy, this energy will be transformed into heat energy.
So, $\ce{Cl + Cl \rightarrow Cl_2}$ is exothermic reaction.

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