Statement I: Excluded volume or co-volume equals to (V - nb) for n moles. Statement II: Co-volume de — States of Matter and Gaseous State Chemistry Question

💡 Solution & Explanation

The excluded volume (co-volume) for n moles of gas is equal to 'nb', while the free volume available for gas molecules is (V - nb). Thus, Statement I is incorrect. Statement II is correct because b = 4 × NA × (4/3 π r^3), which directly depends on the molecular size.