A solar concentrating heat exchanger system directs sunlight onto a long, straight pipe. The pipe receives 153.616 Btu/h per foot of length. If water enters the pipe at 50.0 lbm/h as saturated liquid at 300.°F and is heated isothermally so that it leaves as vapor at 20.0 psia, then
a. How long is the pipe for steady state, steady flow conditions.
b. What is the rate of entropy production.
c. Show whether this system violates the second law of thermodynamics.