1.

State and explain the applications of 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 helpful in determining the molecular formula of gaseous compounds.
It establishes the relationship between the VAPOUR density and molecular MASS of a gas.
It gives the value of molar 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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