Question

Which of the following expressions represents the value and unit of van der Waals’ constant a?

• A. $a = \frac{V}{n},Lmol^{- 1}$
• B. $a = \frac{PV}{n},atmL^{2}mol^{- 1}$
• C. $a = \frac{pv^{2}}{n^{2}},atmL^{2}mol^{- 2}$
• D. $a = \frac{p}{n},atmmol^{- 1}$

Answer 1

Answer: (C)

$a = \frac{pv^{2}}{n^{2}},atmL^{2}mol^{- 2}$

Answer 2

: $a = \frac{PV^{2}}{n^{2}}$unit : atm $L^{2}mol^{- 2}$