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Significance of vander's waal radius 'a' and 'b' and its SI units |
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Answer» The van der Waals equation of state approaches the ideal gas law PV=nRT as the values of these constants approach zero. The CONSTANT a provides a correction for the INTERMOLECULAR forces. Constant b is a correction for finite molecular size and its value is the volume of one MOLE of the atoms or molecules. The SI UNIT of vander waal's constant a is Nm^4 mol^-2. The SI unit of b is m^3 mol^-1 |
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