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Learn about the equation of state that extends the ideal gas law to include the non-zero size and interactions of gas molecules. See how it models the liquid-vapor phase change, predicts the critical point and explains the phenomena of superheating and subcooling.
Learn how the Van der Waals equation modifies the ideal gas equation to account for the volume and attractive forces of real gases. See the derivation, merits, demerits, and limitations of the equation, and solve example problems.
Learn how van der Waals' equation improves the ideal gas equation by accounting for the finite volume and intermolecular forces of real gas molecules. See the derivation, physical picture and applications of this equation.
Learn how the Van der Waals equation of state is derived from a pair potential with a hard sphere and an attractive term. Explore the features of the equation, such as the critical point, the second virial coefficient and the phase transitions.
By adding corrections for interparticle attractions and particle volumes to the ideal gas law, we can derive a new equation that more accurately describes real gas behavior. This equation, known as the van der Waals equation, can be used to calculate the properties of a gas under non-ideal conditions.
25 Σεπ 2020 · Learn about the van der Waals equation, a simple model that describes the behaviour of real gases, and compare it with other equations of state. Find out the meaning and units of the constants a and b in the equation.
Learn how to correct the ideal gas law for nonideal gases using the van der Waals equation, which accounts for the size and attraction of gas molecules. See the values of the van der Waals constants for different gases and examples of their application.
