606_Physics ProblemsTechnical Physics

606_Physics ProblemsTechnical Physics - 608 *P21.22 The...

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608 The Kinetic Theory of Gases *P21.22 (a) At any point in the heating process, Pk V ii = and V P V V nRT V V i i i i == = 2 . At the end, P nRT V VP f i i 2 2 2 and T PV nR nR T f ff i = 22 4. (b) The work input is WP d V nRT V VdV nRT V V nRT V VV n R T i f i i V V i i V V i i i i i i i =− zz 2 2 2 2 2 2 2 2 4 3 2 ej . The change in internal energy, is ∆∆ En C T n R T T n R T Vi i i int = + 5 2 4 15 2 bg . The heat input is Q E W nRT RT = = int mol 18 2 91 af . P21.23 (a) The heat required to produce a temperature change is QnCTnCT =+ 11 The number of molecules is NN 12 + , so the number of “moles of the mixture” is nn + and QnnC T , so C nC = + + . (b) Qn C T n C T i m i i m F H G I K J ∑∑ C n i m i i m = = = 1 1 Section 21.3 Adiabatic Processes for an Ideal Gas P21.24 (a) P V i i f f γγ = so V V P P f i i f = F H G I K J = F H G I K J = 1 57 100 20 0 0118 γ . . . (b) T T P P V V f i f i f i F H G I K J F H
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This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .

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