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Byju's Answer

Standard XII

Chemistry

Zero Order Reaction

NH3 and HCl...

Question

$N H_{3}$ and $H C l$ gas are introduced simultaneously from the two ends of a long tube. A white ring of $N H_{4} C l$ appears first :

nearer to the

H C l

end

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at the center of the tube

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throughout the tube

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nearer to the

N H_{3}

end

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Solution

The correct option is A nearer to the $H C l$ end
A white ring of $N H_{4} C l$ appears first nearer to the $H C l$ end. The rate of diffusion is inversely proportional to square root of molar mass. The molar mass of $H C l$ (36.5 g/mol) is higher than the molar mass of ammonia (17 g/mol). Hence, the rate of diffusion of ammonia is higher than the rate of diffusion of $H C l$ .
Hence, option A is correct.

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Similar questions

Q. When HCl fumes and

N H_{3}

fumes are introduced into opposite ends of a long, dry glass tube, a white ring forms in the tube. Which of the following statement explains this phenomenon best?

Q. Two gases NH₃ and HBr are introduced simultaneously into opposite ends of an open tube 1m long. The distance at which a ring of NH₄Br is formed from the NH₃ end is

Q. The reaction between gaseous

N H_{3}

and

H B r

produces a white solid

N H_{4} B r

. Suppose a small quantity of gaseous

N H_{3}

and gaseous

H B r

are introduced simultaneously into opposite ends of an open tube which is one metre long. Calculate the distance of white solid formed from the end which was used to introduce

N H_{3}

A small quantity of gaseous $N H_{3}$ and HBr are introduced simultaneously into the opposite ends of an open tube that is 1m long. Calculate the distance of the white solid $N H_{4} B r$ formed from the end that was used to introduce $N H_{3}$ .

Q. The reaction between gaseous

{N H}_{3}

and

H B r

produces a white solid

{N H}_{4} B r

. Suppose that

{N H}_{3}

and

H B r

are introduced simultaneously into the opposite ends of an open tube of

1

metre long. Where would you expect the white solid to form?

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NH3 and HCl gas are introduced simultaneously from the two ends of a long tube. A white ring of NH4Cl appears first :

$N H_{3}$ and $H C l$ gas are introduced simultaneously from the two ends of a long tube. A white ring of $N H_{4} C l$ appears first :