Using tables in Thermodynamics.

Specific Enthalpy `h`(kJ/kg)
water hf,
Saturated Steam h= hf + x(hfg)

Note: hfg = (hg-hf)

Superheated Steam h= h @ Pressure & Temperature

Specific Volume `v`= x(vg) m3/kg

x = dryness fraction of saturated steam.

*Question
Produce a temperature v enthalpy for 0.85 dry saturated steam at 3 bar pressure.

*Question
What is the pressure 5.2 bar expressed in kN/m2?

Remember that Specific Volume is the inverse of the Density!

Units
Specific Volume= m3/kg
Density= kg/m3

Gas Laws
PV/T=C and PV=mRT

Specific gas constant `R`= 0.287 kJ/kg K.