Molar Volume of A Gas at ATP

Gases expand and contract (change volume) with changes in temperature and pressure.

We have a standard condition to compare volume of gas called STP (Standard Temperature and Pressure)

STP: 1atmosphere of pressure and a temperature of 0°C or 273.15K.

At STP, 1 mole of gas occupies 22.4L

Thus we can create the conversion factors: 22.4L/mol & 1mol/22.4L

Ex. Calculate the volume occupied by 32Kg of oxygen at STP

32*10^3/16=2000mol

200*22.4=45000L