The compressibility factor for definite mass of a van der Waals' gas at and 100…

CHEMISTRY · Single correct · IB Diploma Programme · Chemistry · Ideal gases · Ideal gases

Problem

The compressibility factor for definite mass of a van der Waals' gas at

0^\circ\text{C}

and 100 atmosphere is found to be 0.5. Assuming the volume of gas molecules negligible, the van der Waals' constant '

a

' for a gas is : (1)

1.256 \text{ litre}^2 \text{ mol}^{-2} \text{ atm}

(2)

0.256 \text{ litre}^2 \text{ mol}^{-2} \text{ atm}

(3)

2.256 \text{ litre}^2 \text{ mol}^{-2} \text{ atm}

(4)

0.0256 \text{ litre}^2 \text{ mol}^{-2} \text{ atm}