$\begin{array}{1 1}(A)\;Z=1-\large\frac{Pb}{RT}\\(B)\;Z=1+\large\frac{Pb}{RT}\\(C)\;Z=1+\large\frac{RT}{Pb}\\(D)\;Z=1-\large\frac{a}{VRT}\end{array} $

Want to ask us a question? Click here

Browse Questions

Ad |

0 votes

0 votes

The van der Waals equation of state

$(P+\large\frac{a}{V_m^2})$$(V_m-b)=RT$

At low pressure, $V_m -b \approx V_m$ , the equation reduces to

$(P+\large\frac{a}{V_m^2})$$(V_m)=RT$

$\Rightarrow PV_m+\large\frac{a}{V_m}$$=RT$

$Z=\large\frac{PV_m}{RT}$$=1-\large\frac{a}{V_mRT}$

Hence (D) is the correct answer.

Ask Question

Take Test

x

JEE MAIN, CBSE, AIPMT Mobile and Tablet App

The ultimate mobile app to help you crack your examinations

...