Question

At room temp, $N{H}_3$ gas at one $atm$ & $HCl$ gas at "$P"atm$ are allowed to effuse through identical pin holes to the opposite ends of a glass tube 1 $m$ long & uniform cross-section. A white deposit is observed at a distance of 60 $cm$ from the $HCl$ end. What is "$P$".(in $atm$) (write the value to the nearest integer)

Answer 1

As we know,
$\frac{60}{40}=\frac{P}{l\sqrt{\frac{17}{36.5}}}$
$\Rightarrow P=2.1979atm$