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Gay Lussac's Law, Avagadro's Law

The number of...

Question

The number of molecules in 1 L of oxygen and 1 L of nitrogen at STP will be:

A

equal

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B

greater for

N_{2}

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C

greater for

O_{2}

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D

equal to Avogadro's number

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Solution

The correct option is A equal
Equal volumes of different gases under identical conditions of temperature and pressure contains equal number of molecules. (Avogadro's law)

1 mole = 22.4 litre

Hence, the number of molecules in 1 L of oxygen and 1 L of nitrogen will be equal at STP.

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