Water-Energy Change and work (This question is optional and camies Extra Credit up to a total of 20 points) 0.50 Ibm of water is contained in a closed piston-cylinder system initially at 300. "F and 500. psia. If the water is heated at constant pressure:
(a) What is the final temperature if the final volume is 0.40 fts?
(b) What is the enthalpy change e., final minus intial of the water if the final volume is 0.40 ft
(c) What is the enthalpy change if the final temperature is 600 F?
(d) How much work is done ifthe final temperature is 600, oF?
Hint Do some independent reading on
(a) superheated fuds,
(b) understanding of constant pressure and constant temperature curves in relation to vapor domes and how to interpolate values of density or specific volume at temperatures that do not appear in the tables. Also, see the examples the end of class Notes-10Muti Phase Flows KKA)