As noted in class, example 3.1 is incorrect in the hardcover, and a
correction is on the first page of todays' scanned lecture notes.

In any case, the book's solutions would really not be acceptable on
the exams.

For example, if you look in the Tv diagram of example 3.2, the line 1,
horizontal 30 degree isotherm, has *not* be drawn; apparently the book
wants you to imagine that line.  Please keep in mind that I do not
imagine lines when I grade exams, I grade what is there.  You must
draw the line.  The isobar of the looked-up saturated value 1167kPa is
OK in the figure, but the leftmost leg of the 1000 kPa isobar is
missing!  It is simply misleading to suggest that that isobar would
just disappear at the saturated liquid line.  The state, the fat dot,
*would* be found if you fill in the missing 30 degree isotherm.

Similarly in the Pv diagram of 3.2, the 30deg line 1 is OK, but the
horizontal 1167 kPa looked-up line is missing. Then the horizontal
1000 kPa line 2 is complete missing.  Instead a 25 degree isotherm
that has absolutely nothing with the problem to do is drawn.  Of
course, without the 1000 kPa isobar, there is no way to find the
intersection point with the 30 degree isotherm, so the state is not
found either!  Hello Drs Sonntag and Borgnakke!  The purpose is to
find the *state*!  I assume they had a not very strong student make
the graphs.  This Pv diagram would lose about half the credit in an
exam, with the missing line, nonsense 25 degree line, and missing
final state (final answer).

There are some examples of these diagrams on the web site under study
aids:

http://www.eng.fsu.edu/~dommelen/courses/eml3100/aids/index.html

Look at the sections on substance tables and linear interpolation
on that page.  (Linear interpolation is described OK in the book too.)

You can also look at Dr. Ordonez' explanation of the steam tables:

http://www.eng.fsu.edu/~dommelen/courses/eml3100/ordonez/index.html

Look at the third of the "Chapter 3" links.