ME326_HW3_14Sept2011

ME326_HW3_14Sept2011 - ME 326-Homework Assignment#3 Due 13...

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ME 326-Homework Assignment #3 Due: 13 Sept 2011 Topic: Phase and property tables Problem #1: Determine the missing properties for water (H 2 0) for each state given. Show your calculations for each case. Phase T P v u h (no units) °C kPa m 3 /kg kJ/kg kJ/kg 200 400 Sat. vapor 50 2,000 0.2 150 900 Problem #2: Determine the missing properties for ammonia (NH 3 ) for each state given. Show your calculations for each case. Phase T P v u h (no units) °F psia ft 3 /lb m BTU/lb m BTU/lb m x = 0.6 100 Sat. liq. 200 70 200 150 120 Problem #3: A rigid tank having a volume of 6 ft 3 is initially filled with R134a at 70 °F and 100 psia. One quarter (25%) of the initial mass is removed from the tank and the remaining mass returns to thermal equilibrium at 70 °F. Determine: a) the initial mass in the tank (lb m ), b) the final specific volume (ft 3 /lb m ), c) the final pressure (psia). Problem #4:
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This note was uploaded on 12/14/2011 for the course ME 326 taught by Professor Schmidt during the Fall '07 term at University of Texas.

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ME326_HW3_14Sept2011 - ME 326-Homework Assignment#3 Due 13...

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