Physics - Heat & Thermo Question with Solution | TestHub

The molecules of a given mass of a gas have r.m.s. velocity of $200{\mathrm{ms}}^{-1}$ at $27^{\circ }\mathrm{C}$ and $1.0\times 10^5$ ${\mathrm{Nm}}^{-2}$ pressure. When the temperature and pressure of the gas are respectively, $127^{\circ }\mathrm{C}$ and $0.05\times 10^5{\mathrm{Nm}}^{-2},$ the r.m.s. velocity of its molecules in ${\mathrm{ms}}^{-1}$ is :