AP Chemistry · Unit 3: Properties of Substances and Mixtures
3.6 Deviation from Ideal Gas Law
In short
You must understand that the ideal gas law does not perfectly describe the actual behavior of real gases. The required depth includes attributing deviations from ideal behavior to two specific factors: interparticle attractions among gas molecules (particularly significant at conditions close to condensation) and the actual volume of the particles themselves (particularly significant at extremely high pressures).
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How is Deviation from Ideal Gas Law tested on the exam?
You are assessed on your ability to provide reasoning to justify a claim using connections between particulate and macroscopic scales or levels (Argumentation, Skill 6.E). Expect questions that ask you to explain why a gas deviates from ideal behavior under specific conditions (e.g., high pressure or low temperature) by referencing interparticle forces or particle volumes.
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Deviation from Ideal Gas Law: common questions
What do you need to know about Deviation from Ideal Gas Law for AP Chemistry?
You must understand that the ideal gas law does not perfectly describe the actual behavior of real gases. The required depth includes attributing deviations from ideal behavior to two specific factors: interparticle attractions among gas molecules (particularly significant at conditions close to condensation) and the actual volume of the particles themselves (particularly significant at extremely high pressures).
How is Deviation from Ideal Gas Law tested on the AP Chemistry exam?
You are assessed on your ability to provide reasoning to justify a claim using connections between particulate and macroscopic scales or levels (Argumentation, Skill 6.E). Expect questions that ask you to explain why a gas deviates from ideal behavior under specific conditions (e.g., high pressure or low temperature) by referencing interparticle forces or particle volumes.
Where does Deviation from Ideal Gas Law fit in AP Chemistry?
Deviation from Ideal Gas Law is topic 3.6 in Unit 3: Properties of Substances and Mixtures of AP Chemistry.
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