Why when we chew a minty pice of gum your mouth and tounge is cold when you suck in air and when you drink

Where are the questions

Particle exchange energy though elastic collision , hope this .

Cause its being chemically applied?

Rate law for this reaction israte of the reaction = k[a]²[b].second order in a  means concentration of a in power of two, and  first order in b means concentration of b in power of one.