Question

The r.m.s velocity at a temperature is 2 times the r.m.s velocity at 300K .What is this temperature?

Answer 1

Answer:

Explanation:

Formula to be used: Vrms=$\sqrt{\frac{3RT}{M} }$

therfore for a molecule given Vrms α $\sqrt{T}$

Hence $\frac{V}{V'}$=$\sqrt{\frac{T}{T'} }$

==>4=$\frac{T}{T'}$

==> T=4T'= 1200K