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Question: problem 1 a rigid pressure tank contains 800 g of...

Question details

Problem 1:

A rigid pressure tank contains 800 g of saturated water of quality 0.8 at 0.8 MPa. Determine the mass of ice if the tank is cooled to –8 ˚C.

Problem 2:

Krypton is contained in a rigid 2-m3 pressure vessel at T = 20 ˚C and P = 3.3 MPa. Determine the mass using the compressibility factor. What is the error (%) if the ideal gas model is used?

Problem 3:

Determine the compressibility factor for CH4 at the given state: a) 275 K, 0.8 MPa b) 7.5 MPa, 225 K c) 0.015 m3 /kg, 175 K

Problem 4:

Estimate the saturation pressure of the following substances at 300K using the generalized compressibility chart: a) R-123 b) R-32 c) R-141

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