Thermodynamics
Thermodynamics can be used to make the number of necessary measurements smaller, or to make the type of measurement easier.
It turns out that volumetric flowrates are far easier to measure than mass or molar flows.How can we make use of this information ?
 Use single  phase thermodynamics to convert from volumetric flows to mass / molar flows

 Determine the density of a mixture of liquids
 Use the ideal gas law to determine P, V, or T of a single component
 Determine the composition of a mixture of ideal gases from their partial pressures or volume fractions
 Use one(or all) of the covered non  ideal equations(SRK, compressibility factor, van der Waals, virial equation) to determine P, V, or T
 Use equations of state for mixtures of gases
 Use equations of state in material balances
When multiple phases are in equilibrium with each other, the problem becomes constrained .Can we use this information, along with Thermodynamics, to further reduce the number of necessary measurements ?
 Sketch a phase diagram and label relevant regions / points(solid, liquid, gas, critical point, etc.)
 Use Gibbs phase rule to determine how much information is necessary to specify the thermodynamic state of a system
 Explain the difference between the Gibbs phase rule and a Degrees  of  freedom analysis
 Perform vapor  liquid equilibrium(VLE) calculations

 Estimate the vapor pressure of liquid components
 Use ideal solution expressions to determine the composition of liquids and their corresponding vapors
 Define and use K values, Raoult 's law, and relative volatility
 Distinguish between when Henry 's Law and Raoult' s Law would be applicable
 Use Txy or Pxy diagrams for non  ideal(and ideal) solutions
 Explain the relationship between y  x, Txy, and Hxy diagrams
 Estimate the composition of liquids in equilibrium with solids
 Estimate the composition of immiscible liquids in equilibrium with each other(using either partition ratios or ternary phase diagrams)