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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 O2 , B only N2 and C a mixture of equal quantities of O2 and N2 .If the average speed of the O2 molecules in vessel A is V1 , that of the N2 molecules in vessel B is V2 , the average speed of the O2 molecules in vessel C is (where M is the mass of an oxygen molecule)(a) (V1 + V2 )/ 2(b) V1(c) (V1V2)1/2(d) √3kT/M |
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Answer» Correct Option (b) V1 Explanation: Average speed of gas molecule vav = √8kT/m. It depends on temperature and molecular mass. So the average speed of oxygen will be same in vessel A and vessel C and that is equal to V1 . |
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