Question 88 of 133

Themolecular radius for a certain gas = 1.25 A. What is a reasonable estimate of the magnitude of the van der Wails constant, b, for the gas?

(1) 0.98 × 10–2 litre/mole

(2) 1.43 × 10–2 litre/mole

(3) 1.97 × 10–2 litre/mole

(4) 3.33 × 10–2 litre/mole