One mole of helium and one mole of neon are taken in a vessel. Which of the following statements are — States of Matter and Gaseous State Chemistry Question

💡 Solution & Explanation

Molecules of He (M = 4) are lighter than Ne (M = 20). Since average speed c_avg ∝ 1/√M, He molecules have a higher average speed and strike the walls more frequently. Neon molecules are heavier and carry more momentum, thus applying greater average force per collision. According to Dalton's Law, equal moles of ideal gases in the same volume exert equal partial pressures.