How to prove that pressure of vanderwaal gas is a state function?
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where Vm is the molar volume of the gas, R is the universal gas constant, T is temperature, P is pressure, and V is volume. When the molar volume Vm is large, b becomes negligible in comparison with Vm, a/Vm2 becomes negligible with respect to P, and the van der Waals equation reduces to the ideal gas law, PVm=RT.
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van der Waals Equation of State. The ideal gas law treats the molecules of a gas as point particles with perfectly elastic collisions. ... Constant b is a correction for finite molecular size and its value is the volume of one mole of the atoms or molecules.
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