Interpretation:
The volume around each atom into which the center of another atom cannot penetrate , the excluded volume for 1 mole of the atoms and the volume compare with the sum of the volume of 1 mole of the atoms have to be explained.
Concept introduction:
The volume around each atom into which the centre of another atom cannot penetrate is called the excluded volume. To determine the excluded volume, use the formula for volume of a sphere to calculate the volume of a sphere of radius
The atoms are spherical, the equation for the volume of a sphere is
Multiply the excluded volume per molecule by
Avogadro’s number is
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