Question
The r.m.s. velocity of molecules of a gas with a density of $4 \, \text{kg m}^{-3}$ and a pressure of $1.2 \times 10^5 \, \text{N m}^{-2}$ is
The r.m.s. velocity of molecules of a gas with a density of $4 \, \text{kg m}^{-3}$ and a pressure of $1.2 \times 10^5 \, \text{N m}^{-2}$ is