Physics - Heat & Thermo Question with Solution | TestHub

The value closest to the thermal velocity of a Helium atom at room temperature $(300\mathrm{K})$ in ${\mathrm{ms}}^{-1}$ is: $\left[{\mathrm{k}}_{\mathrm{B}}=1.4\times 10^{-23}\mathrm{J}/\mathrm{K};{\mathrm{m}}_{\mathrm{He}}=7\times 10^{-27}\mathrm{kg}\right]$