Last LectureWhat is thermodynamics?» Study of energy transformations» Relationships among physical quantities of different substances affected by such transformations Two approaches» Classical thermodynamics: macroscopic (considers large scale behavior)» Statistical thermodynamics: microscopic (considers molecular scale behavior)In ME 200, we will focus on understanding large scale behavior, statistical viewpoints in a supporting roleDimensions and units
This LectureDiscuss some terms and concepts commonly used in thermodynamic analysis» System» Property» State» Equilibrium» Process» Cycle» Energy
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System and SurroundingsWhat is a thermodynamic system?» Any three-dimensional region of space bounded by one or more arbitrary geometric surfacesWhat is meant by the term surroundings?» The region of space outside the arbitrary boundariesSystem boundary may be real or it could be immaginary The system may be stationary or moving