Question

Calculate the radius of the atoms if its Vander Waal's constant ‘b’ is 24 ml mol-1.

(Note 1 ml = 1 cubic centimeter)

• A. 1.355 Å
• B. 1.314 Å
• C. 1.255 Å
• D. 0.355 Å

Answer 1

Answer: (A)

1.355 Å

Answer 2

$4 \times \frac{4}{3}\pi r^{3} \times N_{A} = 24$