Question

Two bulbs $A$ and $B$ of equal capacity are filled with $He$ and $S{O}_2$ respectively at the same temperature. How does the speed change (answer as an integer multiple of initial velocity $V_2=n{V}_1$), if the volume of $B$ becomes 4 times that of $A$ at the same temperature?
So, the value of n is ____.

Answer 1

As we know,
$u_{rms}=\sqrt{\left[\right(3RT\left)/M\right]}$ and thus independent of $P$ and $V$ terms and therefore, no change in $u_{rms}$ by changing molecules.
so $V_2=V_1$
so value of $n$ is 1.