1.

State Avogadro's law.

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Solution :Avogadro.s LAW : Equal volumes of all GASES under the same conditions of temperature and pressure contain an equal number of MOLECULES.
Applications of Avogadro.s law :
`**` It is used to determine the atomicity of gases.
`**` It is used to determine the atomicity of gases.
`**` It is helpful in determining the molecular formula of GASEOUS compounds.
`**` It gives the value of molar volume of gases at STP. Molar volume of a gas at STP = 22.4 litres.
`**` It explains Gay lussac.s law effectively.


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