Question

One mole of oxygen occupies a volume of $24L$ at ${20}^{\circ }C$ and $1atmpresssure$. What is the rms speed of an oxygen molecule in m/s?

Answer 1

$C_{rms}=\sqrt{\frac{3PV}{nM}}$$=\sqrt{\frac{3\times 1.013\times {10}^5\times 24\times {10}^{-3}}{32\times {10}^{-3}}}=477m/s$