Question

Which of the gases that you will deal with in the experiment is an ideal gas?

		CO2 (g)
		H 2O (g)
		H 2O (g)
		no gas is ever ideal

Answer 1

Answer :

The answer will be the last option : no gas is ever ideal

Explanation :

An ideal gas is a gas in which the molecules that make up the gas have no size, never collide or otherwise interact with each other, and if they hit the walls of the container they're held inside, they rebound off perfectly without having lost any of their speed or energy.

The idea of ideal gas is purely hypothetical and such gases does not exist in the physical universe. The explanation for why it does not exist in the real world is in the definition itself. The ideal gas composed of molecules with no size, it's not possible.