NEET Physics Kinetic Theory of Gases Questions Solved

Three closed vessels A, B and C are at the same temperature T and contain gases which obey the Maxwellian distribution of velocities. Vessel A contains only ${\mathrm{O}}_2 , \mathrm{B}$ only ${\mathrm{N}}_2$ and C a mixture of equal quantities of ${\mathrm{O}}_2$ and ${\mathrm{N}}_2$. If the average speed of the ${\mathrm{O}}_2$ molecules in vessel A is ${\mathrm{V}}_1 ,$ that of the ${\mathrm{N}}_2$ molecules in vessel B is ${\mathrm{V}}_2 ,$ the average speed of the ${\mathrm{O}}_2$ molecules in vessel C is

1. $\left({\mathrm{V}}_1+{\mathrm{V}}_2\right)/2$                           

2. ${\mathrm{V}}_1$

3. ${\left({\mathrm{V}}_1{\mathrm{V}}_2\right)}^{1/2}$                               

4. $\sqrt{3 \mathrm{kT}/\mathrm{M}}$