Real gases behave much like an ideal gas at low pressure and high temperature.
An ideal gas is defined as a gas that obeys gas laws at all condition of pressure and temperature. Ideal gases have velocity and mass.
- They do not have volume.
- When compared to the total volume of the gas the volume occupied by the gas is negligible.
- It does not condense and does not have triple point.
A real gas is defined as a gas that does not obey gas laws at all standard pressure and temperature conditions.
- When the gas becomes massive and voluminous it deviates from its ideal behaviour.
- Real gases have velocity, volume and mass.
- When they are cooled to their boiling point, they liquefy.
- When compared to the total volume of the gas the volume occupied by the gas is not negligible.