Kinetic Molecular Theory of Gases — Prelims Questions

Which of the following statements is NOT a postulate of the Kinetic Molecular Theory of Gases?

At what temperature will the root mean square speed of $SO_2$ be the same as that of $O_2$ at $27^circ\text{C}$? (Molar mass of $SO_2 = 64,\text{g/mol}$, Molar mass of $O_2 = 32,\text{g/mol}$)

If the absolute temperature of an ideal gas is doubled, what happens to the average kinetic energy per molecule?

Which of the following phenomena is best explained by the postulate that gas particles are in constant, random motion?

Calculate the total translational kinetic energy of 2 moles of an ideal gas at $27^circ\text{C}$. (Given: $R = 8.314,\text{J mol}^{-1}\text{K}^{-1}$)

Which of the following conditions would cause a real gas to behave most like an ideal gas?