Elementary - 11.22 a Energy balance on the bar MCv dTb = Q W =-UA Tb Tw dt Table B.1 b g M = 60 cm e 3 je7.7 g cm j = 462 g 3 2 2 2 B Cv = 0.46

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11- 17 11.22 a. Energy balance on the bar MC dT dt QW U AT T v b bw =−= ± ± bg M CT U A vw == =⋅ ° = ° ° =+ + = B 60 7 7 462 046 25 0050 2 2 3 2 10 3 10 112 cm g cm g kJ (kg C), C J(m incm C ) cm cm 33 2 22 Table B.1 ej e j af af af a f af a f . . . dT dt T b b =− ° 0 02635 25 . b g Cm in tT b ° 09 5 , C b. dT dt TT b bf bf − ⇒ = ° 0 0 02635 25 25 . di c. dT T dt b b t T b z z 25 0 02635 0 95 . F H G I K J ln . T t b 25 95 25 0 02635 ⇒= + Tt t b b g 25 70 0 02635 exp . Check the solution in three ways : () .. ( ) . 12 5 7 0 9 5 70 0 02635 0 02635 25 25 0 02635
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This note was uploaded on 02/27/2012 for the course CHEMICAL E 312 taught by Professor Cheung during the Fall '11 term at The University of Akron.

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