Single Phase Systems
Look it Up when you need a value for a
physical property of a substance-whether it
be a density, vapor pressure, solubility, or
heat capacity-there is a good chance that
someone, somewhere has measured this
property and published the result.
Estimate It
Measure It
An equation of state relates the molar
quantity and volume of a gas to temperature
and pressure.
The simplest and most widely used of these
relationships is the ideal gas equation of
state (the familiar PV=nRT)
The ideal gas equation of state can be derived
from the kinetic theory of gases by assuming
that gas molecules have a negligible volume,