Chapter 7 Entropy, of the course:
Thermodynamics for Engineers

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7 Entropy

  1. Clausius inequality
    2. Clausius inequality for Carnot cycle; equivalent processes; Clausius inequality for any cycle
    Power point: English text: 7_Entropy_1_Clausius
    Video lecture: English text & narration - English text+Arabic narration
  2. Entropy from Clausius inequality
    3. Change of entropy as a state property for a reversible process; change of entropy for an irreversible process; entropy and chaos
    Power point: English text: 7_Entropy_2_Entropy_Clausius
    Video lecture: English text & narration - English text+Arabic narration
  3. Gibbs equation
    4. Derivation, friction work and its relationship with entropy change due to irreversibility
    Power point: English text: 7_Entropy_3_Gibbs
    Video lecture: English text & narration - English text+Arabic narration
  4. Entropy relationship with other state properties
    5. Change of entropy for an ideal gas; change of entropy for a semi-ideal gas; volume and pressure ratios for an isentropic process; entropy for ideal gas mixtures; Entropy for wet vapor; entropy for solids and liquids
    Power point: English text: 7_Entropy_4_State
    Video lecture: English text & narration - English text+Arabic narration
  5. Entropy based charts
    6. Temperature entropy chart: area under a process, representing isochoric and isobaric processes; Temperature entropy and enthalpy entropy charts in superheated vapor and wet vapor regions; entropy departure for real gases using compressibility charts
    Power point: English text: 7_Entropy_5_Ts_hs
    Video lecture: English text & narration - English text+Arabic narration
  6. Entropy for a control volume
    7. Derivation of the general expression for entropy change for a control volume, Isentropic efficiency for an expansion process (turbine, nozzle); isentropic efficiency for a compression process (compressor, diffuser)
    Power point: English text: 7_Entropy_6_Open
    Video lecture: English text & narration - English text+Arabic narration
  7. Entropy from the statement of Caratheodory
    8. State properties and total differentials; Euler condition; constructing a state property for an ideal gas; generalizing for any substance
    Power point: English text: 7_Entropy_7_Carateodory
    Video lecture: English text & narration - English text+Arabic narration
  8. Entropy from statistical thermodynamics
    9. Macro and microstates; definition of thermodynamic probability; derivation of thermodynamic probability for a system of multiple compartments; applying for two compartments but different number of particles; relation between entropy and thermodynamic probability
    Power point: English text: 7_Entropy_8_Statistical
    Video lecture: English text & narration - English text+Arabic narration
  9. Principle of entropy increase
    10. Principle of entropy increase; thermal death; Maxwell’s daemon; entropy and information ; philosophical consequences of First and Second Laws
    Power point: English text: 7_Entropy_9_increase
    Video lecture: English text & narration - English text+Arabic narration
  10. Worked examples
      11. Power point: English text: All_Entropy_Examples
      Video worked examples:
    1. Examples 1, 2 (Arabic naration)
    2. Examples 3, 4 (Arabic naration)
    3. Examples 5, 6 (Arabic naration)
    4. Examples 7, 8, 9 (Arabic naration)
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