question_answer

Three closed vessels A, B and Care at the same temperature T and contain gases which obey the Maxwellian distribution of velocities. Vessel A contains only \[{{O}_{2}}\], B only \[{{N}_{2}}\] and C a mixture of equal quantities of \[{{O}_{2}}\,and\,{{N}_{2}}\]. If the average speed of the \[{{O}_{2}}\] molecules in vessel A is \[{{V}_{1}}\], that of the \[{{N}_{2}}\] molecules in vessel B is \[{{V}_{2}}\], the average speed of the \[{{O}_{2}}\] molecules in vessel C is

A) \[{{({{V}_{1}}+{{V}_{2}})}^{/2}}\]             

B)        \[{{V}_{1}}\]

C)        \[{{({{V}_{1}}{{V}_{2}})}^{1/2}}\]  

D)        \[\sqrt{3kT/M}\]