Three closed vessels A, B and C are at the same temperature and contain gases which obey the Maxwellian distribution of velocities. Vessel A contains only O2, B only N2, and C, a mixture of equal quan

Question

Three closed vessels A, B and C are at the same temperature 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

TestHub · Accepted Answer

Average speed u av = √(8RT/π M) depends only on the temperature and the molecular mass of that species, not on what other gases share the vessel. Vessel C is at the same temperature as A, and its O 2 molecules have the same M; hence their average speed is V 1 . Confirms Ans (b) V1.

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