Question

Can you use the saturated liquid property values at the pressure of a system to determine the properties of compressed liquids?

Answer 1

In general ,a compressed liquid is characterized by ,

               1).Higher pressure(P > Psat at a given T),P sat is saturated pressure at a constant temperature

                2).Lower temperatures (T < Tsat at a given P)

                 3).Lower internal energies(u < ug at a given P or T)

                 4).Lower specific volumes(v < vg at a given P or T)

                  5).Lower entalpies (h < hg at a given P or T)

In the absence of compressed liquid data ,a general approximation is to treat compressed liquid as saturated liquid at the given temperature,because the compressed liquid properties depend on temperature much more than in pressure.