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Gay Lussac's Law, Avagadro's Law

When 100 ml o...

Question

When 100 ml of a $O_{2} - O_{3}$ mixture was passed through turpentine, there was the reduction of volume by 20 ml. If 100ml of such a mixture is heated, what will be the increase in volume?

A

10 m l

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B

20 m l

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C

30 m l

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D

25 m l

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Solution

The correct option is C $10 m l$
Ozone is highly soluble in turpentine. Thus, the decrease in volume of $20$ ml is due to the solubility of ozone. Thus $100 m l$ of a mixture contains $20$ ml of ozone.
On heating, $20$ ml of ozone decomposes to form $30$ ml of oxygen. The net increase in volume will be $(30 - 20) = 10 m l$ .
$2 O_{3} \to 3 O_{2}$

So, the correct option is $A$

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