### The volume of gases

In particular we look at the volume of 1 MOL of gas. Because that is special in the case of gases. (and not with (s) or (l))

Any gas at the temperature of 0^{o}C and a pressure of 1 atm. has the volume of 22,4 liter per MOL (= **molar volume** of gases).

Att.: Every gas has the same molar volume, but mind: not the same molar mass!!

It does not matter with what gas you are dealing, the volume that it occupies is always determined by the temperature and the pressure of that gas,
wether the molecules are big or small.

We apply that with the following formula:

The temperature T is given in Kelvin!! The pressure in Nm^{2}. The volume in m^{3}

The constant c is: *n* x R, where:

*n* = the number of MOL and R = 0,0821 J x mol^{-1} x K^{-1}