If molecules of a gas are assumed to be perfect rigid spheres of radius , the actual volume occupied — States of Matter and Gaseous State Chemistry Question

💡 Solution & Explanation

Actual volume $= N_A \times (4/3)\pi r^3 = (6.022 \times 10^{23}) \times (4/3) \times 3.14 \times (10^{-8}\text{ cm})^3 = 2.52\text{ cm}^3 (\text{mL})$. Note: This is actual volume, not the excluded van der Waals volume '$b$'.