At same temperature two bulbs `A` and `B` of equal capactiy are filled with He and `SO_(2)` respectively If the pressure in two bulbs is same caluculate the ratio of rms speed for them .

Answer

4

Explanation

At same temperature
`u_(rms)` of He `= sqrt((3RT)/(M)) = sqrt((3RT)/(4))`
and `u_(rms)` of `SO_(2) =sqrt((3RT)/(M) ) = sqrt((3RT)/(64))`
`:. (u_9rms ofHe)/(u_(rms)` of `SO_(2)=4` .