https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:intermolecular-forces-and-properties/x2eef969c74e0d802:deviation-from-ideal-gas-law/v/real-gas-vs-ideal-gas 2022-09-05T08:18:59.810508578Z Introduction to real gases Real gases do not always follow the assumptions of the kinetic molecular theory. While the particles of an ideal gas are assumed to occupy no volume and experience no interparticle attractions, the particles of a real gas do have finite volumes and do attract one another. As a result, real gases are often observed to deviate from ideal behavior. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/2e6db7dd-9cc5-4e82-87fa-5e228dc12917_1280_720_base.png Introduction to real gases Real gases do not always follow the assumptions of the kinetic molecular theory. While the particles of an ideal gas are assumed to occupy no volume and experience no interparticle attractions, the particles of a real gas do have finite volumes and do attract one another. As a result, real gases are often observed to deviate from ideal behavior. https://cdn.kastatic.org/ka-youtube-converted/yDZcVKy52LM.mp4/yDZcVKy52LM.mp4 201 Kinetic theory of gases: pressure and molecular speeds https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:intermolecular-forces-and-properties/x2eef969c74e0d802:deviation-from-ideal-gas-law/v/real-gases-deviations-from-ideal-behavior 2022-10-05T02:43:18.611402953Z Real gases: Deviations from ideal behavior In this video, we examine the conditions under which real gases are most likely to deviate from ideal behavior: low temperatures and high pressures (small volumes). At low temperatures, attractions between gas particles cause the particles to collide less often with the container walls, resulting in a pressure lower than the ideal gas value. At high pressures (small volumes), finite particle volumes lower the actual volume available to the gas particles, resulting in a pressure higher than the ideal gas value. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/b7f50b0e-cd0f-41bd-8600-c8aa38eee4c7_1280_720_base.png Real gases: Deviations from ideal behavior In this video, we examine the conditions under which real gases are most likely to deviate from ideal behavior: low temperatures and high pressures (small volumes). At low temperatures, attractions between gas particles cause the particles to collide less often with the container walls, resulting in a pressure lower than the ideal gas value. At high pressures (small volumes), finite particle volumes lower the actual volume available to the gas particles, resulting in a pressure higher than the ideal gas value. https://cdn.kastatic.org/ka-youtube-converted/UABFOI1sb7A.mp4/UABFOI1sb7A.mp4 258 Kinetic theory of gases: pressure and molecular speeds https://www.khanacademy.org/science/chemistry/gases-and-kinetic-molecular-theory/non-ideal-gas-behavior/v/van-der-waals-equation 2020-10-26T20:15:40Z The van der Waals equation 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. Sal Khan video https://cdn.kastatic.org/googleusercontent/j5suiGTyO15Xk4DGxZQ4Ww3SCxgWUJqOlyzdlo1HoEbn4dSD54zKVO0J6XVYrNXrMNq9dEI3WpVwZf1ah7Y2iFE The van der Waals equation 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. https://cdn.kastatic.org/ka-youtube-converted/9_epJ4vUsNI.mp4/9_epJ4vUsNI.mp4 317 Kinetic theory of gases: pressure and molecular speeds https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:thermodynamics/x0e2f5a2c:gases/v/boltzmanns-constant 2023-09-10T17:11:17.624018169Z Boltzmann's constant Explore Ludwig Boltzmann's groundbreaking atomic theory and his constant's role in thermal physics. Understand the kinetic-molecular explanation of temperature, the ideal gas law, and the concept of entropy. Uncover the microscopic details of gas molecules and their impact on our understanding of heat energy. David SantoPietro video https://cdn.kastatic.org/googleusercontent/BLHNuXIi0HZxDyAf9rEVZQjcZBsBgNZozIC05J-Ug11CAf3nC9upHB0OtD8pA7SCf1waFzl3xpXDyWQQ_33j5zs Boltzmann's constant Explore Ludwig Boltzmann's groundbreaking atomic theory and his constant's role in thermal physics. Understand the kinetic-molecular explanation of temperature, the ideal gas law, and the concept of entropy. Uncover the microscopic details of gas molecules and their impact on our understanding of heat energy. https://cdn.kastatic.org/ka-youtube-converted/rVD7HKafnnE.mp4/rVD7HKafnnE.mp4 586 Kinetic theory of gases: pressure and molecular speeds https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:thermodynamics/x0e2f5a2c:gases/a/what-is-the-maxwell-boltzmann-distribution 2025-02-27T08:03:41.344353732Z What is the Maxwell-Boltzmann distribution? In a gas, there are lots of molecules traveling at lots of different speeds. Here's a framework for thinking about that. article https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:thermodynamics/x0e2f5a2c:gases/e/rms-speed-and-average-kinetic-energy-of-gas-molecules 2025-03-12T14:20:10.072734823Z RMS speed and average kinetic energy of gas molecules Let's solve some problems to better understand how to find the rms speed and average KE of gas molecules. Aakash Bagga exercise