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In the van der Waals equation, what do the 'a' and 'b' constants represent?

Practice Questions

Q1
In the van der Waals equation, what do the 'a' and 'b' constants represent?
  1. Attraction and volume correction
  2. Pressure and temperature
  3. Density and molar mass
  4. Entropy and enthalpy

Questions & Step-by-Step Solutions

In the van der Waals equation, what do the 'a' and 'b' constants represent?
  • Step 1: Understand that the van der Waals equation is used to describe the behavior of real gases.
  • Step 2: Recognize that gases do not behave perfectly due to interactions between particles and their volume.
  • Step 3: The constant 'a' in the equation represents the strength of the attractive forces between gas particles.
  • Step 4: The constant 'b' represents the volume that the gas particles themselves occupy, which is not available for movement.
  • Step 5: Together, 'a' and 'b' help to correct the ideal gas law to better reflect real gas behavior.
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