van der Waal's equation of state of a gas takes into account

Explanation

`(P + (a)/(V^(2))) (V-b)= RT`
a and b are called as van der waal.s constant. They depend on the nature of the gas Larger the value of .a. for a gas, greater will be the attractive forces between the molecules. A gas with higher value of .a. possess greater tendency to get liquefied. SI unit of .a. is `Nm^(4) mol^(-2)`
`a= (pV^(2))/(n^(2))`
.b. is the excluded volume of the gas. higher the value of .b., greater is the actual volume of the molecules of the gases. SI unit of .b. is `m^(3) mol^(-1)`
`b= ("excluded volume")/(n)`