A spring-loaded piston-and-cylinder device is initially filled with 0.2 lbm of a vapor-liquid mixture of R-134a at -30F and a quality of 80%. The spring constant in the spring force relation F = k x is 37 lbf/in, and the piston diameter is 12 in. The R-134a undergoes a process that increases its volume by 40%. Calculate the final temperature and enthalpy of the R-134a.