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Interpretation: Whether the attractive or repulsive interaction potential dominates for 42.1 g of Ar present in a container of volume 0.0885 L at 375 K needs to be determined with the help of pressure using ideal gas, van der Waals and Redlich-Kwong equation of state.
Concept Introduction: The ideal gas equation is the equation which gives the relations between P, V, n and T of gases. It can be written as:
PV = nRT
Usually, gases do not follow ideal behavior under all conditions of pressure, temperature and volumes. The relation of P, V, n and T of real gases can be given by Vander Waals equation:
Hence
The Redlich-Kwong equation of state can be written as:
Here, Vmis molar volume and a and b are constants.
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Chapter 7 Solutions
Physical Chemistry
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