PPT-THERMODYNAMICS -II

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). [4]. 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. AP Environmental Science. What is Energy?. Energy is a . measurable quantity. that can be stored in a physical system. Energy can be . transferred. from one system to another and so . cause changes. Lecture 1. Plan of the Course. The Geochemical Toolbox. Thermodynamics. Kinetics. Aquatic systems. Trace elements & magmatic systems. Isotopes. Radiogenic. Stable. The Big Picture: Cosmochemistry. 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. 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. ~Energy. Intro. Most natural events involve a decrease in total energy and an increase in disorder.. The energy that was “lost” was converted to heat. . An increase in energy/motion decreases the overall order (organization) of the system.. © 2014 Pearson Education, Inc.. Contents of Chapter 15. The First Law of Thermodynamics. Thermodynamic . Processes and the First Law. Human . Metabolism and the First Law. The . Second Law of . Thermodynamics—Introduction. with the emphasis here on large-scale helium cryogenics. Tom . Peterson, SLAC . January 2017. January, 2017 USPAS. Thermodynamics for Cryogenics Tom Peterson. 2. Outline. Definitions . Perfect gas (. Entropy: Criteria for Spontaneity. Second Law of Thermodynamics. Third Law of Thermodynamics. Free Energy . Coupled Reactions. Thermodynamics. The chemistry . that . deals with the flow of energy during a chemical or physical process;. Principles of . Engineering. 1. Thermodynamics. Rub your hands together for 15 seconds.. Are your hands warm?. Thermal energy. 2. Thermodynamics. The study of the effects of work, heat flow, and energy on a system. 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. Topics to be covered . Laws of thermodynamics: . Zeroth law, First law, Second law, and Third law. Thermal Processes: . Isobaric, Isochoric, adiabatic, and Isothermal. Heat engines, Refrigerators, Air-conditioners, and Heat pumps. . Temperature is the measurement of the average kinetic energy of material. . Atoms move around and collide with the thermometer and exchange its energy causing the thermometer to go up.. Three units of measuring temperature.