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Ever see a fast food commercial. Don't those burgers look great. Then you get one, and you are disappointed because it is not the perfect one on the TV. So you lie to yourself. No matter how many burgers you order in your life, none will be as perfect at the one on TV. But if you think it is perfect, who really cares. vs. Ideal gas are like the commercials and real gases are what you get. Nothing is ever perfect, but close is good enough. Ideal Gas Rules (the Kinetic Molecular Theory)
Here is what you really need to know. 1. The most ideal gas in nature is hydrogen then helium. It is small and has the least mass. 2. How real gases deviate from Ideal gases. They have mass, volume and attraction. this causes the molecules to be drawn to each other, which cause the actual volume of a gas to be smaller then its ideal gas calculation.
AP Chemistry-The Van der Waals equation accounts for these shortcomings of the Theory of the Ideal Gas. 3. Also real gases can liquefy under the conditions of High Pressure and Low Temperature. These are the least ideal conditions. Just like ideal gas conditions, Ideal Vacations conditions High Temperature and Low Pressure. |