what is the difference between an ideal gas and a real gas
Best Answer: A real gas molecule has a shape and a finite size. An ideal gas molecule (imaginary) is a point with no shape and it occupies no space. A real gas molecule interacts with others.
Also, since ideal gas particles excerpt no attractive forces, their collisions are elastic. Real gases excerpt small attractive forces. The pressure of an ideal gas is much greater than that of a real gas since its particles lack the attractive forces which hold the particles back when they collide. Therefore, they collide with less force.
1 The particles of an ideal gas lose no energy to its container. 2  A real gas conducts and radiates heat, thereby losing energy. 3  There is no attraction between the molecules of an ideal gas. 4  A real gas has particle attractions.