Question

Difference between vanderwaals constant and critical constant

Answer 1

In thermodynamics, a critical point (or criticalstate) is the end point of a phase equilibrium curve. The most prominent example is the liquid-vapor critical point, the end point of the pressure-temperature curve that designates conditions under which a liquid and its vapor can coexist. The van der Waals equation of state approaches the ideal gas law PV=nRT as the values of these constantsapproach 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.

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Answer 2

Hey mate, here is your answer
In thermodynamics, a critical point (or criticalstate) is the end point of a phase equilibrium curve. The most prominent example is the liquid-vapor critical point, the end point of the pressure-temperature curve that designates conditions under which a liquid and its vapor can coexist. The van der Waals equation of state approaches the ideal gas law PV=nRT as the values of these constantsapproach 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.

Hope it's helpful for you