MT1rev_ch10handout

MT1rev_ch10handout - Manometers A manometer can be used to...

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3 Manometers Manometers A manometer can be used to measure the gas pressure for a sample of gas Key point : pressure is the same for a given height in the liquid region From elementary physics: Gravitational force applied by a body = mg = d (Ah) g Where d = density A = surface area of liquid H = height of liquid g = gravitational constant gas atm h P P + = gas atm P P h = + 4 From: Quiz 1, Chem 122 Winter 08, Dr. Mathews 5 The Ideal Gas Law – A Closer Look nRT pV = Constant n constant PV T = General gas equation Use for cases where we have the same sample of gas present P T Constant V Charles’ Law Constant V, T P n Avogadro’s Law Constant T 1 P V Boyle’s Law n=1 at STP 1 mol = 22.4 L 6 Using the Ideal Gas Law Learn and know how to use this equation! – Use correct units and correct value of R . • Know which pressure units you are using – be able to interconvert between them. – Conversion factors are on the data sheet.
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This note was uploaded on 04/29/2008 for the course CHEM 122 taught by Professor Zellmer during the Winter '07 term at Ohio State.

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MT1rev_ch10handout - Manometers A manometer can be used to...

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