Chapter 4 Pure substance and Equations of state, of the course:
Thermodynamics for Engineers

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4 Pure substance and equations of state

  1. Phase change
    2. Definition of a phase and of a Pure substance; Evaporation at constant pressure phases (Compressed (or subcooled) liquid – Saturated liquid – Wet vapor – Saturated vapor – Superheated vapor); Other phase changes (fusion, sublimation, …); Constant pressure phase change implies constant temperature; Latent Heat of different phase changes
    Power point: English text: 4_Pure_1_Phase_Change
    Video lecture: English text & narration - English text+Arabic narration
  2. Observed property relations
    3. Thermodynamic surfaces and the triple point; Thermodynamic tables (Saturation – Superheat – Compressed (subcooled) – Solid …); Dryness fraction (quality); Degrees of Freedom; Gibbs phase rule
    Power point: English text: 4_Pure_2_Observed_Property_Relations
    Video lecture: English text & narration - English text+Arabic narration
  3. Ideal (perfect) gas thermal equation of state
    4. Hypotheses for an ideal (perfect) gas; Equipartition of energy; Derivation of the ideal gas thermal equation of state; Universal and specific gas constants
    Power point: English text: 4_Pure_3_Ideal_Gas_Eq_State
    Video lecture: English text & narration - English text+Arabic narration
  4. Calorificequations of state
    5. Definition of specific heats; derivation for ideal gases; reasons for variation of specific heats for large temperature ranges; definition and modeling of semi-ideal gases
    Power point: English text: 4_Pure_4_Calorific_Eqs
    Video lecture: English text & narration - English text+Arabic narration
  5. Real gases equation of state
    6. Assumptions of Van Der Waals equation of state; derivation in terms of reduced properties; Law of corresponding states; compressibility charts for compressibility factor and enthalpy deviation; other relations for real gases, liquids and solids
    Power point: English text: 4_Pure_5_Real_Gas
    Video lecture: English text & narration - English text+Arabic narration
  6. Ideal gas mixtures
    7. Assumptions; mass, mole fractions and mixture molecular mass; Amagat model and partial volumes; Dalton model and partial pressures; energy properties of ideal gas mixtures
    Power point: English text: 4_Pure_6_Ideal_Gas_Mix
    Video lecture: English text & narration - English text+Arabic narration
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