Question

Calculate the RMS velocity of Ozone kept in a closed vessel at ${20}^{\circ }$ C and 82 cm Hg pressure.

• A.
• B.
• C.
• D.

Answer 1

The correct option is A

$\frac{P_1{V}_1}{T_1}=\frac{P_2{V}_2}{T_2}$
$\Rightarrow \frac{82\times V_1}{293}=\frac{76\times 22400}{273}$
$\therefore V_1=\frac{76\times 22400\times 293}{82\times 273}=22282ml$
According to Kinetic Gas Equation
$u=\sqrt{\frac{3PV}{M}}=\sqrt{\frac{3\times (82\times 13.6\times 981)\times 22282}{48}}$
$\mu =3.9\times {10}^{4}cm/s$