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EGR 334 Thermodynamics Chapter 5:

EGR 334 Thermodynamics Chapter 5: . Lecture 20: 2 nd Law of Thermodynamics Class Discussion. Today’s main concepts:. Understand the need for and the usefulness of the 2 nd law Be able to explain what is meant by a spontaneous process.

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EGR 334 Thermodynamics Chapter 5:

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  1. EGR 334 ThermodynamicsChapter 5: Lecture 20: 2nd Law of Thermodynamics Class Discussion

  2. Today’s main concepts: • Understand the need for and the usefulness of the 2nd law • Be able to explain what is meant by a spontaneous process. • Be able to able to explain the 2nd Law of Thermodynamics using gives different aspects of the law. • Be able to discuss the different aspects of the 2nd Law Reading Assignment: • Reread Chapter 6 Homework Assignment: Problems from Chap 5: 3, 6, 17, 20

  3. Grading for Chapter 5 Discussion: Points will be given for contributions to the discussion. + 2 points for significant input. + 1 point for moving conversation forward + 0 point for just adding filler - 1 point for incorrect information or concepts + 1 bonus point for correcting another’s incorrect statement Process for Chapter 5 Discussion: 1) A random student will be selected and given the Orb of Focus. 2) A concept from Chap 5 will be introduced. 3) Selected student will start the discussion. 4) As other students want to contribute, they will raise their hand and the current speaker will pass the Orb of Focus to one of the students who wish to speak. If there are no volunteers, the speaker may pass the Orb to a student of their choice. 5) The instructor will introduce new terms as discussion runs down.

  4. Terms for Chap 5 Class Discussion : Irreversible vs. Reversible Clausius Statement Spontaneous Heat Transfer Kelvin-Planck Statement Entropy Statement Internally Reversible Process Carnot Corollaries Carnot Efficiency Max. heat pump efficiency Max. refrigeration cycle COP Carnot Cycle ClausiusInequality

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