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Estimate the fraction of molecular volum...

Estimate the fraction of molecular volume to the actual volume occupied by oxygen gas at STP. Take the diameter of an oxygen molecule to be 3 Å.

Text Solution

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`4 xx 10^(-4)`
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The volume occupied by 16g of oxygen at S.T.P.

The density of water is 1000 kg m^(-3) . The density of water vapour at 100^(@)C and 1 atm pressure is 0.6 kg m^(-3) . The volume of a molecule multiplied by the total number gives ,what is called, molecular volume. Estimate the ratio (or fraction) of the molecular volume to the total volume occupied by the water vapour under the above conditions of temperature and pressure.

Knowledge Check

  • What is the volume of 1 g hydrogen gas at STP ?

    A
    11.2 L
    B
    22.4 L
    C
    1.12 L
    D
    2.24 L

  • One mole of oxygen gas at STP is equal to ......

    A
    `6.022xx10^(23)` molecules of oxygen
    B
    `6.022xx10^(23)` atoms of oxygen
    C
    16 g of oxygen
    D
    32 g of oxygen

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    What volume gain by gas at STP ?

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