A stream of liquid nitrogen enters an adiabatic, steady-state valve as a saturated liquid at P = 2 MPa. The material leaves the valve at P = 0.6 MPa. Use the data in Figure 2-3 to determine the following.A. The temperature of the nitrogen leaving the valve.

B. The physical state of the nitrogen leaving the valve (if VLE mixture, indicate quality).

C. The rate at which entropy is generated in the valve (per kg of entering nitrogen.)

D. The irreversible feature of the process, if any, that explains the result of part C.

E. Repeat parts A, B, and C for methane instead of nitrogen. Use Figure 7-1

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THERMODYNAMIC PROPERTIES OF NITROGEN 250 Â, kJ/kg FIGURE 2-3 Thermodynamic diagram for nitrogen. 0 50 100 150 200 300 350 400 0.3 m²gl 450 20 10 8 6 4 2 P, MPa 1 0.8 0.6 0.4 0.2 0.1 500 Based on W.C. Reynolds, Thermodynamic Properties in SI, Department of Mechanical Engineering, Stanford University, 1979