AP®︎ Chemistry: Topic 3.6 Flashcards

Master key terms and definitions for Topic 3.6 of AP Chemistry – Deviation from Ideal Gas Law to help you prep for quizzes and the AP exam.

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Term

Effect of Attractions on Measured Pressure

Definition

Real-gas pressure is lower than ideal pressure because attractions reduce wall-collision frequency and force.

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Effect of Attractions on Measured Pressure
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Real-gas pressure is lower than ideal pressure because attractions reduce wall-collision frequency and force.

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Effect of Particle Volume at High Pressure
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At very high pressure, real gases occupy more volume than ideal gases predict.

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Causes of Real Gas Deviation
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Real gases deviate because particles attract each other and occupy finite volume.

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Factors That Increase Non-Ideal Behavior
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Low temperature, high pressure, polarity, and larger size make gases less ideal.

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Van Der Waals Equation and Constants
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This real-gas model corrects pressure for attractions and volume for particle size.

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