At a pressure of $24 \times {10^5}\,dyne/c{m^2}$, the volume of ${O_2}$ is $10\, litre$ and mass is $20\, gm.$ The $r.m.s.$ velocity will be....... $m/sec$
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A narrow glass tube, $80 \,cm$ long and opens at both ends, is half immersed in mercury, now the top of the tube is closed and is taken out of mercury. A column of mercury $20 \,cm$ long remains in the tube. Find atmospheric pressure
Hydrogen gas is filled in a balloon at $20^\circ C$. If temperature is made $40^\circ C$, pressure remaining same, what fraction of Hydrogen will come out
In the two vessels of same volume, atomic hydrogen and helium at pressure $1\, atm$ and $2\, atm$ are filled. If temperature of both the samples is same, then average speed of hydrogen atoms $ < {C_H} > $ will be related to that of helium $ < {C_{He}} > $ as