Lab 8

Ch18 Kinetic Theory Characters – names, definitions, microscopic traits What is pressure microscopically? What is internal/thermal energy microscopically? How do you write these mathematically?

Ch18 Ideal Gas Law Characters – names, definitions, microscopic traits Proportional Reasoning What happens if I double P? What happens if I drop V by one-third/ What happens if I add heat? Others? Visual representation -- PV Diagrams Physical explanation Equation Types of processes

Ch18 PV Diagrams, Problem Solving Work as groups: Estimation based on the Physical Situation 1.Model the macroscopic parameters of a B-Day balloon at STP. Draw its PV diagram if it sits overnight. 2.Determine the density of air in a car tire. How does this change after driving? Draw its PV diagram while inflating. 3.Balloon problem on HW

Ch19 1 st Law We used Conservation of Energy General statement of energy conservation Internal energy – temperature Work relationships – calculus, volume Heat – energy transfer due to T differences Cyclic processes Distinguish system and environment Describe different types of physical processes: E, Q, W Signs and conventions

Ch19 Processes Adiabatic – isentropic Constant volume – isochoric, isovolumetric Constant pressure – isobaric Constant temperature – isothermal Let’s Play Algebraic Sudoku with Thermodynamics!