Notes%2009.22.10

Notes%2009.22.10 - This has a variety of names: expansion...

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1 Meeting 8--Sections 3-6–3-8, 4-1
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2 Reduced properties In those cases use the pseudoreduced volume: c c c c R RT vP /P RT v v = =
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3 Compressibility factor for ten substances
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4 TEAMPLAY Use the compressibility factor to determine the error in the specific volume if oxygen gas at 160 K and 3 MPa is treated as an ideal gas.
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5 More complex equations of state Van der Waals
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6 Beattie-Bridgeman : where
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7 What did an integral represent in calculus? P v 1 2 A R E A = 2 1 PdV W
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8 Moving boundary work = 2 1 PdV W Work for a closed, compressible system is given by
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Unformatted text preview: This has a variety of names: expansion work PdV work boundary work compression work 9 Some Common P(V) Paths P=C , constant pressure process P=C/V, ideal gas, const.temp. process PV n =C, polytropic process 10 Polytropic process = V V PdV W 2 1 A frequently encountered process for gases is the polytropic process: constant c PV n = = Since this expression relates P & V, we can calculate the work for this path....
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Notes%2009.22.10 - This has a variety of names: expansion...

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