- #1
Jstuff
- 15
- 0
Homework Statement
R134a rests in a compressed fluid can at 120psia, and a specific volume of 0.38ft3/lbm. What is its temperature and quality? Half of the mass is now vented off to the atmosphere. The can is allowed to exchange heat with the surroundings at 100°F until they are in thermal equilibrium. What is the pressure in the can now?
Homework Equations
Properties Tables in the back of my thermo books.
Pv=RT
The Attempt at a Solution
So I looked at the properties table in the back of my book and saw that the temperature of R134a in a compressed fluid is -40F. However, this is incorrect. I also thought that the quality would be 0 since quality only applies to a substance that is saturated i.e. in between the liquid and gaseous state. However, this is also wrong. For the second part I have no idea how to go forward. Please help. I'm trying to understand this problem not just get the answer.
Thanks[/B]