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Dalton's Law of Partial Pressures

A gas mixture...

Question

A gas mixture contains equal weights of ammonia and hydrogen sulphide. If the total pressure of mixture is $3$ atmospheres, partial pressure of hydrogen sulphide in atmospheres is:

A

1

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B

2

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C

1.5

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D

0.5

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Solution

The correct option is A $1$
$N H_{3} + H_{2} S \to N H_{4} H S$

$X_{N H_{3}} = \frac{1}{3}$

$P_{N H_{3}} = 3 \times \frac{1}{3} = 1$ $a t m .$

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