So far we have only spoken about the way ideal gas molecules behave. We still haven't spoken about how actual or real gas molecules behave. Now, recall that any ideal gas molecule will behave accordingly with the kinetic molecular theory which makes a few important assumptions. Now, in this lecture, we're going to look at the way real gas gas molecules behave and which assumptions are broken down and under which conditions. So on the conditions of standard temperature of zero Celsius and standard pressure of one ATM we can use the ideal gas law to solve problems and to figure out how gas molecules behave. Now, under conditions of high pressure of about 1000 ATM and low temperatures the ideal gas law breaks down meaning our gas molecules no longer behave accordingly with this law.