Ideal Gases These are the opposite of real gases and they have no mass and no definite volume. There is elasticity concerning the collision of ideal gas particles and pressure is high. read more
Real gases have small attractive and repulsive forces between particles and ideal gases do not. Real gas particles have a volume and ideal gas particles do not. Real gas particles collide in-elastically (loses energy with collisions) and ideal gas particles collide elastically. read more