When do real gases behave most like ideal gases?
Under low temperatures and high pressures, gases behave less like ideal gases and more like real gases.
An ideal gas has the following qualities:
This is approximated well by most gases when they are at low pressure, so that the particles are small and far apart compared to the volume of the gas, and when the temperature is high so that the particles are moving fast.
When the pressure is increased, the number of particles in the same volume increases, so the volume of the particles becomes a bigger proportion of the volume of the gas. When the pressure is high enough, we can no longer assume that qualities
When the temperature decreases the particles move more slowly, which makes the part of quality