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An insulated 1.7 m3 rigid tank contains air at 500 kPa and 50oC. A valve connected...

An insulated 1.7 m3 rigid tank contains air at 500 kPa and 50oC. A valve connected to the tank is now opened and air is allowed to escape until the pressure inside drops to 200 kPa. The air temperature during this process is maintained constant by an electric resistance heater placed in the tank. a. Determine the mass of air initially, m1 in kg. b. How much air escaped from the tank, mout in kg. c. Determine the electrical work done during the process.

engineering   Mechanical-Engineering   
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Geven data V- 1-7 m3 =393K m, PV R T, = 500 x103 x 1,7 R3 서 Ko ? 92 70) m, 9.169 m,9.17(b) tow much a escaped pom the tank RT2 287 X323 92701 m 3 667 k Atr escapedl f3om the tnm mm2 9.17-3.66 m,-m, 5.503 (c) Deteto = 19.17x1.00 5x383) -(3. 67メト005x323) (296 (1.191.33) 785 38 k3

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