Question

A gas described by Van Der Waals equation:
A. Behave similar to an ideal gas in the limit of large molar volumes
B. Behave similar to an ideal gas in the limit of large pressures
C. is characterised by Vander waals coefficients that are dependent on the identify of the gas but are independent of the temperature
D. has the pressure that is lower than the pressure exerted by the same gas behaving ideally.

Answer 1

Hint: The ideal gas law equation can be defined as the equation of state of a hypothetical ideal gas. It gives us a good approximation about the behavior of many gases under many conditions but it goes through some limitations too.

Complete answer:
Van der waals equation is generally a modified version of the Ideal Gas Law which states that gases consist of point masses that undergo perfectly elastic collisions. However, this law fails to explain the behaviour of real gases. Therefore, Van der Waals equation was devised and it helps us define the physical state of a real gas.
Van der Waal equation defines the relationship between pressure, volume, temperature and amount of real gases.
Hence from the above discussion we described the gas according to Vander waal equation is it Behave similar to an ideal gas in the limit of large molar volumes, is characterised by Vander waals coefficients that are dependent on the identity of the gas but are independent of the temperature and has the pressure that is lower than the pressure exerted by the same gas behaving ideally.

Thus, option A, C and D are correct.

Note:
The state of an ideal gas is determined by the macroscopic and microscopic parameters known as pressure, volume, temperature. But in reality, ideal gas does not exist; it is just a hypothetical gas proposed to simplify the calculations.