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Explain : Avogadro.s Law. |
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Answer» SOLUTION :In 1811 Italian SCIENTIST Amedeo AVOGADRO tried to combine conclusions of Dalton.s atomic theory and Gay Lussac.s law of combining volumes which is now known as Avogadro law. Avogadro.s Law : It states that equal volumes of all gases under the same conditions of temperature and pressure contain equal number of molecules. Mathematically Formula : According to Avogadro.s Law as the temperature and pressure remain constant, the volume DEPENDS upon number of molecules of the gas or in other words amount of the gas. `V prop n` (constant T and p).....(Eq. -i) where, n = The number of moles of the gas `THEREFORE V=k_(4)n ""`.....(Eq. -ii) Molar volume at STP = 22.7 L Atoms in one mole `= 6.022xx10^(23)` The relation of volume and density of gas can be obtained by `M = k_(4)d`. |
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