What is the equation of state for real gases ?

Why do real gases deviate from ideal behaviour ? Write the equation of state for real gases (van der Waals equation).

What are real gases ?

What are real gases ?

State and explain the equation of state for an ideal gas. Why real gases deviate from the ideal behaviour ? What is van der Waal's modification of the gas equations ?

What do you mean by the ideal gas equation?Is this equation valid for real gases?

What are ideal and real gases? What is the cause of deviation of real gases from the ideal gas behaviour ?