A 20-ft3 rigid tank initially contains saturated refrigerant- 134a vapor at 160 psia. As a result of heat transfer from the refrigerant, the pressure drops to 50 psia. Show the process on a P-v diagram with respect to saturation lines, and determine (a) the final temperature, (b) the amount of refrigerant that has condensed, and (c) the heat transfer.
1/11/17 PHYS 202 The syllabus is online Chapter 11 Preview: The basic Energy Model This chapter is about thermal energy, chemical energy, and energy transfers in the form of heat Work and heat are energy transfers that change the system’s total energy. If the system is isolated, the total energy is conserved o If energy goes into the system from the environment, the system’s energy increases, opposite the system loses energy If Environment pushes an object, kinetic energy is exerted thus moving the object. Then it stops based on friction, increasing the thermal energy, then it leaves and cools. Clicker Question: Christina throws a javelin into the air. As she propels it forward from the rest, she does 270J of