Physics - Heat & Thermo Question with Solution | TestHub

$v_{rms}\propto \sqrt{T}$ with T in kelvin. Doubling on the absolute scale multiplies $v$ by $\sqrt{2}$; doubling the celsius value (e.g. $27^{\circ }\mathrm{C}\to 54^{\circ }\mathrm{C}=300\mathrm{K}\to 327\mathrm{K}$ ) gives a much smaller rise. Hence more in case (i).