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A spring loaded piston cylinder device is initially filled with 0.1 kg of R-134a saturated liquid vapor mixture whose temperature is at -34 oC and quality is 80 percent. The spring constant in the spring force relation F=kx is 6480 N/m and the piston diameter is 0.305 m. The R-134a undergoes a process that increases its volume by 40 percent. Calculate the final temperature and enthalpy of the R-134a.
R-134a:vf = .0007142vg = .27090hf = 7.566hg = 229.65hfg = 222.09
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