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Two flasks A and B have equal volume. A ...

Two flasks `A` and `B` have equal volume. `A` is maintained at `300 K` and `B` at `600 K`. While `A` contains `H_(2)` gas, `B` has an equal mass of `CH_(4)` gas. Assuming ideal behaviours for both the gases, answer the following:
Flask in which molecules are moving faster

A

`A`

B

`B`

C

Both `A` and `B`

D

None

Text Solution

Verified by Experts

Since `(mu_(av))_(A)=sqrt((8RT_(A))/(pi M_(A)))`
`(mu_(av))_(B)=sqrt((8RT_(B))/(pi M_(B)))`
Hence
`((mu_(av))_(A))/((mu_(av))_(B))=sqrt((T_(A))/(M_(A)))xxsqrt((M_(B))/(T_(B)))=sqrt((300)/(2))xx(16)/(600)=2`
`:. (mu_(av))_(A)gt(mu_(av))_(B)`
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