A rigid 1.0-m3 tank contains water initially at 120° C,
Chapter 7, Problem 171HP(choose chapter or problem)
Problem 171HP
A rigid 1.0-m3 tank contains water initially at 120° C, with 50% liquid and 50% vapor by volume. A pressure-relief valve on top of the tank is set to 1.0 MPa (the tank pressure cannot exceed 1.0 MPa; water will be discharged instead). Heat is now transferred to the tank from a 200° C heat source until the tank contains saturated vapor at 1.0 MPa. Calculate the heat transfer to the tank and show that this process does not violate the second law.
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