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  4. Calculate the root mean square velocity of ozone kept in a closed vessel at 20°C and 82 cm mercury pressure.

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Q. Calculate the root mean square velocity of ozone kept in a closed vessel at $20^{\circ}C$ and $82 \,cm$ mercury pressure.

IIT JEEIIT JEE 1985States of Matter

Solution:

$u_{rms}=\sqrt{\frac{3RT}{M}}=\sqrt{\frac{3\times 83.14 \times 293}{48\times10^{-3}}}= 390.2 \,ms^{-1}$