8.3 Deviations from Ideal-Gas Behavior

Question 1

What are the two assumptions necessary for the kinetic-molecular theory?

Answer 1

1. particles of an ideal gas experience no intermolecular forces
2. volume of the individual particles of an idea gas is negligible compared to the volume of the gas container

Question 2

When do the assumptions of the kinetic-molecular theory not hold up?

Answer 2

high pressures and low temperatures

Question 3

What is the van der Waals equation?

Answer 3

includes terms to account for the differences in the observed behavior of real gases and calculated properties of ideal gases while maintaining the same form as the ideal gas law