che320_class3edited

che320_class3edited - Phase & Chemical Equilibrium...

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Equilibrium 1 Darrell Velegol ChE 320 Fall 2009
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3 Thermo review problems today . compressing air (heat and work) fundamental relations entropy increase virial equation announce . No class Mon 07sep2009 (Labor Day). t xam (8 am on Fri 18sep2009, 111 Wartik). 2 1 st exam (8 am on Fri 18sep2009, 111 Wartik). Midterm exam Mon 05oct2009 from 8:15-11:15. assignments . HW 01 due before class Wed 02sep2009. reading: Ch 02
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Example. Compressing air in different ways Air is compressed from an initial condition of 1 bar and 25 C to a final state of 5 bar and 25 C by three different mechanically-reversible processes, in a closed system. a Heat at const V, followed by cooling at const P b Isothermal compression 3 c Adiabatic compression, then cooling at const V For each process, calculate Δ U and Δ H. W and Q
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Example. Fundamental relations for 1 component DerivedU = TdS – PdV dH = TdS + VdP dA = -PdV – SdT dG = VdP – SdT 11
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Story CENTER: Relationship C haracter E xcellence Ow n ership nacity 13 T enacity E ntrepreneurship R elationship
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Example. How fast does a molecule move?
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che320_class3edited - Phase & Chemical Equilibrium...

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