Consider the following figure. Which of the following gases show negative as well as positive deviation from the ideal gas behaviour?

In the van der Waals equation,which of the following will have the highest value of '$a$'?

What is the actual volume occupied by molecules in $1 \text{ mole}$ of water vapor at $STP$?

For a real gas (molar mass $= 60 \, g/mol$),if the density at the critical point is $0.80 \, g/cm^3$ and its critical temperature $T_c = \frac{4 \times 10^5}{821} \, K$,then the van der Waals constant $a$ (in $atm \, L^2 \, mol^{-2}$) is:

In $Vander$ $Waal$'s equation of state for gases,the constant '$b$' is a measure of

In the van der Waals equation for real gases,which of the following terms represents the correction for intermolecular forces?