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# chapter 5-6 slides per page - TOPICS Characteristics of...

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1/28/2010 1 TOPICS Characteristics of Gases Pressure The Gas Laws The Ideal Gas Equation Applications of the Ideal Gas Equation Gas Mixtures and Partial Pressures Nitroglycerine Patch Source: Schwarz Pharma Nitroglycerine Model Automobile Air Bag 6NaN 3 (s) + Fe 2 O 3 (s) Æ 3Na 2 O(s) + 2Fe(s) + 9N 2 (g) ~ 130 g 75 L Pressure Force = mass x gravitational acceleration F = m x g g = 9.81 m/s 2 Force: newton (N) A F area force pressure = = 2 s m kg N × = Pressure: pascal (Pa) 2 s m kg Pa × = Barometer

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1/28/2010 2 Closed end Manometer Open end manometer Boyle’s Law, V(P) Charle’s Law, V(T) Avogadro’s Law, V(n) V = constant x n when p and T do not change molar gas volume, V m Standard Temperature and Pressure ( STP ): T = 273 K, p = 1 atm At STP V m = 22.41 L/mol P = const x T when n and V do not change Gay – Lussac’s Law P(T)
1/28/2010 3 The Ideal Gas Law Application of the Ideal Gas Law pV = nRT When n = const: When n = const and T = const: When n = const and V = const:

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chapter 5-6 slides per page - TOPICS Characteristics of...

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