Physics - Heat & Thermo Question with Solution | TestHub

The molecules of a given mass of gas have a root mean square velocity of $200\mathrm{m}{\mathrm{s}}^{-1}$ at $27^{\circ }\mathrm{C}$ and $1.0\times 10^5{\mathrm{Nm}}^{-2}$ pressure. When the temperature is $127^{\circ }\mathrm{C}$ and the pressure $0.5\times 10^5{\mathrm{Nm}}^{-2},$ the root mean square velocity in ${\mathrm{ms}}^{-1}$, is