lecture23_chem110_sas

lecture23_chem110_sas - Chapter 10: Gases Part 2: Kinetic...

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Chapter 10: Gases Part 2: Kinetic Molecular Theory CH110 FA11 SAS 1 Prepare for Recitation October 20 th ALEKS Objective 8 due October 18 th ANGEL Quiz 8, October 20 th Lecture 22: October 12 th Lecture 23: October 14 th Lecture 24: October 17 th Read: Ch. 10.1-10.9 Additional Preparation: BLB 10 : 5,23,30,45,71,75,82-84; Packet 10 : 1-15 BLB 25 : 11,12,25
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CH110 FA11 SAS 2 By the end of Today’s Lecture you should know: Kinetic-molecular theory Partial pressure Effusion and diffusion KEY QUESTIONS: THE BIG PICTURE Chapter 10: Gases Part 2: Kinetic Molecular Theory What does partial pressure mean? What type of mixtures do gasses form? What state equation can we use to describe mixtures of gasses? Remember: macroscopic properties come from microscopic origins How does the energy of a molecule in a gas compare with intermolecular forces? How can we describe mixtures of gasses? How do real gasses differ from ideal gasses?
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Density is Proportional to Molar Mass CH110 FA11 SAS 3 Example : Air is approximately 80% N 2 and 20% O 2 . What is its average molar mass? The contents of a 1.00 L bulb of air are measured to weigh 1.20 g. What is the average molar mass of air? (Assume T = 294 K, P = 1 atm)
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Partial Pressure CH110 FA11 SAS 4 On the previous slide, I assumed mixtures of gases obey the ideal gas law! Since all ideal gases behave the same, n can
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lecture23_chem110_sas - Chapter 10: Gases Part 2: Kinetic...

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