Question

Why do real gases deviate from ideal gas behavior?

Answer 1

Ideal Gas:

• The general gas equation, commonly referred to as the ideal gas law, represents the state of a fictitious ideal gas through an equation.
• The ideal gas law approximates the behavior of many gases under numerous conditions, despite the fact that it has a number of drawbacks.

Deviation of Real Gas from Ideal Gas:

• A real gas can be defined as a gas that doesn't behave like an ideal gas, whereas an ideal gas is one in which the molecules do not normally attract one another.
• The real gas doesn't produce the behavior of ideal gas because there is an attractive force between the molecules of real gas. And due to this force of attraction, the collisions between the molecules are not elastic.
• And the third reason is that the gas molecules have volume.
• The above-mentioned reasons are not true for the ideal gas. In fact, they possess the just opposite properties.