ME405_Lecture_17 - 3 . Initially the air is pure, but the...

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ME 405 Fall 2006 Professor John M. Cimbala Lecture 17 10/16/2006 Today, we will : Review Exam 1 Continue our discussion of the thermodynamics of evaporation in Section 5.2 Do an example problem Discuss dilution ventilation – the well mixed model in Section 5.3 Results of Exam 1: Mean : 76.1 Lowest : 54 Highest : 99 St. Dev : 11.5 Median : 77 Mode : 77 C s T Isobars P = P room T C T room P = P C
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Given : 0.55 kg of liquid methyl alcohol (methanol) enters the bottom of a closed tank of volume 3.8 m
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Unformatted text preview: 3 . Initially the air is pure, but the methanol begins to evaporate. The temperature and pressure in the tank are 21.2 o C and 99.5 kPa. To do : ( a ) Determine the category of this liquid. ( b ) Calculate the number of kmols of air and methanol in the container. ( c ) Determine whether some or all of the methanol will evaporate. ( d ) Calculate the final mol fraction of methanol vapor in PPM. Will it explode if there is a spark? Solution :...
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This note was uploaded on 07/23/2008 for the course ME 521 taught by Professor Cimbala during the Fall '07 term at Pennsylvania State University, University Park.

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ME405_Lecture_17 - 3 . Initially the air is pure, but the...

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