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Unformatted text preview: TEST 1 Fall 2007
Morning YOU MUST SHOW ALL YOUR WORK PROBLEM I (40 points) (Outcome 2, 5) A tank contains 1 kgm ot‘liquid ammonia and 0.] kgm of ammonia vapor at 2 "C.
Determine:
. The quality ot‘the mixture. 2. The pressure in the system. 3. The total volume ot‘thc container.
4. The volume occupied by the liquid. PROBLEM 2 (20 points) (Outcome 2, 5) Superheated water vapor at 10 bars and 320 0C is allowed to cool at constant
volume until the temperature drops to 150 “C. Determine:
1. The final pressure. 2. The ﬁnal state (.._ VL. or V). and the quality (if saturated). PROBLEM 3 (30 points) (Outcome 2, 5)
Refrigerant 22 is contained in a closed rigid container with a volume of 2 [‘13.
Initially, the pressure and temperature ofthc steam is 140 psia and 300 "F. respectively. The temperature drops as a result of heat transfer to the surroundings.
Determine: . The total mass in the container 2. The temperature at which condensation starts. (You may give a very good
approximation — no need to interpolate) "\ .J. The fraction ot‘the total mass that has condensed when the pressure reaches
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This note was uploaded on 04/07/2008 for the course EGN 3303 taught by Professor Smith during the Spring '08 term at University of South Florida.
 Spring '08
 Smith
 Dynamics

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