Two flask A and B of equal volume are taken. Flask a contains `(H_(2)(g)` at `27^(@)C` and 1 atm pressure. Flask B contain `N_(2)(g)` at `27^(@)C` and

Monjur Alahi

Two flask A and B of equal volume are taken. Flask a contains `(H_(2)(g)` at `27^(@)C` and 1 atm pressure. Flask B contain `N_(2)(g)` at `27^(@)C` and 2 atm pressure. Then select incorrect statements.
A. Average kinetic energy per molecule is same for both
B. Number of molecuels in both compartment are same.
C. Mass of `H_(2)` is more than `N_(2)`.
D. `(U_("rms"))_(H_(2))gt(U_("rms"))_(N_(2)`


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Salim Ahmed Kawsar

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(A) `KE_("avg")=(3)/(2)KT` (only depend on temperature)
(B) `(n_(H_(2)))/(n_(N_(2)))=(1xxV)/(RT)xx(RT)/(2xxV)=(1)/(2)rArrn_(H_(2))=(n_(N_(2)))/(2)`
(C ) `(W_(H_(2)))/(2)=(W_(N_(2)))/(28xx2)rArrW_(H_(2))=(W_(H_(2)))/(28) W_(H_(2))ltW_(N_(2))`
(D) `(U_(rms)H_(2))/(U_(rms)N_(2))=sqrt(M_(N_(2))/(M_(H_(2))))=sqrt(14)gt1`
`(U_(rms))_(H_(2))gt(U_(rms))N_(2)`

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