A bottle of dry ammonia and one of dry hydrogen chloride are connected through a long tube. The stoppers at both ends of the tube are opened simultaneously. The white ammonium chloride ring first formed will be

Question

Dr. Abubacker · Accepted Answer

(b)
According to Graham’s law of diffusion
$r \propto \sqrt{\frac{1}{M}\ }$
The rate of diffusion of ammonia $(M = 17)$ is more than the $HCl\ (M = 36.5)$, thus white ring forms near the hydrogen chloride bottle

Q. A bottle of dry ammonia and one of dry hydrogen chloride are connected through a long tube. The stoppers at both ends of the tube are opened simultaneously. The white ammonium chloride ring first formed will be

Explanation

Reviewed by Dr. Abubacker

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