604_Physics ProblemsTechnical Physics

604_Physics ProblemsTechnical Physics - 606 P21.16 The...

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606 The Kinetic Theory of Gases P21.16 (a) Consider heating it at constant pressure. Oxygen and nitrogen are diatomic, so C R P = 7 2 Qn C T n RT PV T T Q P == = F H G I K J = × = ∆∆ 7 2 7 2 7 2 1 013 10 100 300 100 118 5 . . Nm m K K k J 23 ej e j af (b) Um g y g = m U gy g × 118 10 200 603 10 5 3 . . . J 9.80 m s m kg 2 *P21.17 (a) We assume that the bulb does not expand. Then this is a constant-volume heating process. The quantity of the gas is n PV RT i i = . The energy input is Qt n C T V P so T t nC tRT PVC V i iV . The final temperature is TT TT tR fi i =+ = + F H G I K J 1 . The final pressure is PP T T P tR f i i + F H G I K J 1 . (b) P f =+ ⋅⋅ × F H G I K J = 11 360 12 5 3 atm J 4 s 8.314 J m 3 mol K s mol K 1.013 10 N 4 0.05 m J atm 2 5 . . . π P21.18 (a) CR V F H G I K J =⋅ = 5 2 5 2 8314 719 0 719 . . . Jmo lK mol 0.028 9 kg J kg K kJ kg K bg (b) mM nM PV RT F H G I K J m = × F H G G I K J J = 00289 200 10 300 0811 3
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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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