3–37E A spring-loaded piston-cylinder device is initially filled with 0.2 Ibm of an R-134a liquid-vapor mixture whose temperature is – 30°F and whose quality is 80 percent. The spring constant in the spring force relation F = kx is 37 lbf/in, and the piston diameter is 12 in. The R-134a undergoes a process that increases its volume by 40 percent. Calculate the final temperature and enthalpy of the R-134a. Answers: 81.5°F, 120 Btu/lbm %3D

3–37E A spring-loaded piston-cylinder device is initially filled with 0.2 Ibm of an R-134a liquid-vapor mixture whose temperature is – 30°F and whose quality is 80 percent. The spring constant in the spring force relation F = kx is 37 lbf/in, and the piston diameter is 12 in. The R-134a undergoes a process that increases its volume by 40 percent. Calculate the final temperature and enthalpy of the R-134a. Answers: 81.5°F, 120 Btu/lbm %3D

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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