Question

why is it not possibile to cool a gas to 0 k?

Answer 1

because it's a air and not possible to cool the gas. and I have not get in hand or other . things.... Mark and brainleast...

Answer 2

First of all, the gas will no longer be a gas at absolute zero, but rather a solid. As the gas is cooled, it will make a phase transition from gas into liquid, and upon further cooling from liquid to solid (ie. freezing). Some gases, such as carbon dioxide, skip the liquid phase altogether and go directly from gas to solid. 

I hope it helps.