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posted by  basha on 11/7/2009 11:05:29 AM  |  status: Live  |  Earned Karma: 90

thermo (Entropy?) PLEASE HELP WILLRATE LIFE SAFER

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N/A N/A N/A N/A 11/9/2009 at 10:00:00 AM
Question Details:

 1 m3 rigid tank which is initially empty is connected to a supply line carrying steam at  200°C and 725 kPa.  The valve connecting the tank is opened and steam rapidly flows into the tank.  The valve is closed when the tank pressure reaches 500 kPa.  Although tank is not insulated, the filling process occurs so rapidly that we can assume that it is adiabatic.  After the valve is closed, the  tank cools to the ambient temperature, 25°C.  What is the entropy generation for this entire process? 
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