Question

At a pressure of $24\times {10}^{5}dyne/c{m}^2$, the volume of $O_2$ is 10 litre and mass is 20g. The r.m.s velocity will be-

• A. $800m/s$
• B. $400m/s$
• C. $600m/s$
• D. Data is incomplete

Answer 1

The correct option is C $600m/s$

$v_{rms}=\sqrt{\frac{3PV}{M}}=\sqrt{\frac{3\times (24\times {10}^5\times {10}^{-1})\times (10\times {10}^{-3})}{(20\times {10}^{-3})}}$$=600m/s$