Ch 8: AP Chemistry: Gases

Watch chemistry video lessons on gases and learn about pressure, volume, the ideal gas law, and more. These lessons are just a portion of our AP Chemistry course.

AP Chemistry: Gases - Chapter Summary and Learning Objectives

Solids and liquids have defined volumes that we can use in chemical calculations, but gases are a little more tricky. In this chapter, our instructors will explain how gases act in the world and the laws scientists have discovered about their behavior. You'll learn about pressure, volume, temperature, and density and how they are related to one another. After learning several important equations, you'll learn to calculate properties of gases both in ideal and non-ideal environments. After completing this chapter, you should be able to:

• Define the interrelationships of pressure, volume, and temperature for gases
• Use the ideal gas law and the van der Waals equations to calculate unknowns
• Explain how a gas behaves in a given environment
• Predict the effect that a change in pressure or temperature will have on volume

VideoObjective
The Kinetic Molecular Theory: Properties of GasesUnderstand how the motion of particles creates different physical properties in gases.
Pressure: Definition, Units, and ConversionsLearn what pressure means in relation to gases and the different units that indicate pressure.
Temperature Units: Converting Between Kelvins and CelsiusExplore two ways to measure thermal energy and how to convert between them.
Density of GasExamine what density means and how we can measure the ratio of mass to volume of gases.
Dalton's Law of Partial Pressures: Calculating Partial and Total PressuresTake a look at this law that explains the relationship between mixtures of gases and individual gases.
The Boltzmann Distribution: Temperature and Kinetic Energy Of GasesUnderstand how gas particles move around and interact with each other via this probability distribution.
Diffusion and Effusion: Graham's LawLearn how particles move through space according to the parameters of their environment.
Molar Volume: Using Avogadro's Law to Calculate the Quantity or Volume of a GasExplore the use of moles in calculating particle numbers or gas volume.
Boyle's Law: Gas Pressure and Volume RelationshipExamine the inversely proportional relationship between pressure and volume of gases at a standard temperature.
Charles' Law: Gas Volume and Temperature RelationshipTake a look at how gases tend to expand when heated and what this law states.
Gay-Lussac's Law: Gas Pressure and Temperature RelationshipUnderstand what happens to volume when gases react together to form other gases.
The Ideal Gas Law and the Gas ConstantLearn this equation that describes the relationship of a gas's pressure, volume, amount, and temperature.
Using the Ideal Gas Law: Calculate Pressure, Volume, Temperature, or Quantity of a GasExplore how to use the ideal gas law to calculate unknowns from what you do know about a gas.
Real Gases: Deviation from the Ideal Gas LawsExamine what happens to a gas under non-ideal conditions.
Van Der Waals EquationTake a look at how the van der Waals equation adjusts the ideal gas equation to take non-ideal conditions into account.

15 Lessons in Chapter 8: AP Chemistry: Gases
Test your knowledge with a 30-question chapter practice test
Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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