PPT-A&OS C110/C227: Review of thermodynamics and dynamics III

Robert Fovell UCLA Atmospheric and Oceanic Sciences rfovelluclaedu 1 Notes Everything in this presentation should be familiar Please feel free to ask questions and remember to refer to slide numbers ifwhen possible. LIMITATION OF FIRST LAW OF . THERMODYNAMICS. It does not give information concerning feasibility of a thermodynamic . proces. .. why. NOT EXPLAINED BY FIRST LAW. It tells that work obtained is equal to heat absorbed but in actual heat absorbed can not be completely converted into work. 1. st. law of thermodynamics. Energy may be converted to different forms, but it is neither created nor destroyed during transformations. Energy from chemical bonds is converted to kinetic energy and heat (body and friction from tires). No engine, working in a continuous cycle, can take heat from a reservoir at a single temperature and convert that heat completely to work.. Therefore, no engine can have a greater efficiency than a Carnot engine operating between the same two temperatures.. Robert Fovell. UCLA Atmospheric and Oceanic Sciences. rfovell@ucla.edu. 1. Notes. Everything in this presentation should be familiar. Please feel free to ask questions, and remember to refer to slide numbers if/when possible. We restrict the geometry of the . supercon. - . ductor. to a form for which the external field, . H,. is not distorted by the presence of the superconductor.. Examples being an infinitely long cylinder with . Advanced Chemistry. Ms. . Grobsky. What is Energy?. Energy. . is the capacity to do work. Thermal energy. is the energy associated with the random motion of atoms and molecules. Kinetic energy . is the energy due to motion. Change of phase . . ice. .  . water.  . steam. The Laws of Thermodynamics. The 1. st. Law. The 2. nd. Law. Applications. Heat engines. Refrigerators. Order to disorder. 2. Change of Phase. The Basics. The brief definition of Thermodynamics is . the science concerned with the relations between heat and mechanical energy or work, and the conversion of one into the other: modern thermodynamics deals with the properties of systems for the description of which temperature is a necessary coordinate. Introduction. Zeroth Law of Thermodynamics. If objects A and B are separately in thermal equilibrium with a third object C, then A and B are in thermal equilibrium with each other. . Temperature . T. Patreon.com/. scientistmel. Twitter.com/. scientistmel. 4-7-18 11 am CST. Thermodynamics. Studies the effects on a system. Work. Heat. Energy. System?. System – quantity of matter. Boundaries – fixed or moveable. Statement Number. Assessment Statement. 10.2.1. Deduce an expression for the work involved in a volume change of a gas at constant pressure. 10.2.2. State the first law of thermodynamics. 10.2.3. Identify the first law of thermodynamics as a statement of the principle of energy conservation. Thermometry. Concept of temperature. Boyle’s Law. Charles’ Law. Thermometers. Thermocouple. Calorimetry. Platinum resistance scale. Absolute zero. Lower fixed point. Temperature gradient. Thermodynamic . STATISTICAL THERMODYNAMICS: . LECTURE . 3. Dr Rob Jackson. Office: LJ 1.16. r.a.jackson@keele.ac.uk. http://www.facebook.com/robjteaching. che-20028: Statistical Thermodynamics Lecture 3. 2. Statistical Thermodynamics: topics for lecture 3. Robert Fovell. UCLA Atmospheric and Oceanic Sciences. rfovell@ucla.edu. 1. Notes. Everything in this presentation should be familiar. Please feel free to ask questions, and remember to refer to slide numbers if/when possible.