Question

A flask contains hydrogen and helium gases in the ratio $1:3$ at temperature $300K$, The masses helium and hydrogen molecule are in the ratio?
What will be the ratio of the average kinetic energies of these molecules at $600K$?

• A. $6$
• B. $3$
• C. $2$
• D. $1$

Answer 1

The correct option is A $6$

All the molecules have same kinetic energy at the same temperature.

as the temperature is doubled from $300K$ to $600K$ the ratio changed from $1:3$ to $1:6$