Learning objective
B.3.1—Pressure
• Pressure: P=F/A for force perpendicular to a surface.
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Course review
B.3 Gas laws
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Learning objective
B.3.2—Amount of substance
• Amount of substance: n=N/NA.
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Learning objective
B.3.3—Ideal gas model
• Ideal gases are kinetic-theory models that approximate real gas behaviour.
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Learning objective
B.3.4—Empirical gas laws
• Empirical gas laws combine to PV/T = constant.
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Learning objective
B.3.5—Ideal gas equations
• Ideal gas equations: PV=NkBT and PV=nRT.
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Learning objective
B.3.6—Molecular pressure model
• Pressure arises from molecular momentum changes in collisions with surfaces. • Average translational speed relation: P = 1/3 ρv^2.
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Learning objective
B.3.7—Ideal gas internal energy
• Internal energy of ideal monatomic gas: U=3/2 NkBT = 3/2 nRT.
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Learning objective
B.3.8—Ideal gas approximation limits
• State temperature, pressure and density conditions for ideal-gas approximation.
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