Calculate the volume occupied by 2 moles of an ideal gas at 300 K and 1 atmosphere. Take R = 8.31 J mol⁻¹ K⁻¹ and 1 atm = 1.013 × 10⁵ Pa.

Calculate the root mean square speed of oxygen molecules at 300 K. Take R = 8.31 J mol⁻¹ K⁻¹ and M = 0.032 kg mol⁻¹.

What is mean free path, and on what does it depend?

State the postulates of the kinetic theory of gases.

State the law of equipartition of energy and give the degrees of freedom of a monatomic and a diatomic gas molecule.

For a projectile launched at speed u, at what angle is the horizontal range greatest, and what is that range?

How many significant figures are there in 0.00420, 1.030 and 6.023 × 10²³?