How mothballs vapour acts as insecticides by kinetic theory of matter

Mothballs are solid balls that vaporize when exposed to heat and become smaller until they disappear, this process is called sublimation, and it is part if the kinetic theory of matter. Sublimation is when solid particles break away from each other and the surface to form a gas/vapor. Sublimation is the direct change of solid to gas bypassing the liquid phase.

Explanation:

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.