why is it easier to heat things up, than it is to cool them down?

Question

why is it easier to heat things up, than it is to cool them down?

In: 143

Answer 1

Heat is the presence of kinetic energy it the atoms. Coldness is the absence of that energy.

To heat something up you just need to subject it to some concentrated energy source like a fire, or microwaves, or a laser. To do the converse, to suck the existing energy out of something once it’s there, is not done so easily.