Van der Waals constant

Van der Waals constants are parameters used in a modified ideal gas law to account for the actual behavior of real gases. They quantify two main effects: the finite size of gas particles (represented by the constant ‘b’), which reduces the space available for movement, and the attractive forces between molecules (represented by ‘a’), which influence pressure and volume. These constants help predict how real gases deviate from ideal behavior, especially at high pressures and low temperatures, providing a more accurate description of their physical properties.