PPT-Temperature, Heat, and the First Law of Thermodynamics

Chapter 18 Copyright 2014 John Wiley amp Sons Inc All rights reserved 18 1 Temperature 1801 Identify the lowest temperature as 0 on the Kelvin scale absolute zero 1802 Explain the . 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). Thermodynamics. Rub your hands together for 15 seconds.. Are your hands warm?. Thermal energy. Thermodynamics. The study of the effects of work, heat flow, and energy on a system. Movement of thermal energy. 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. ~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. HEAT? TEMPERATURE?. How to measure temperature?. How to quantify temperature and heat?. How do heat transfer?. HEAT & TEMPERATURE. Temperature. is a quantitative measurement of . hotness/coldness. 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. 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. The net entropy will increase or stay the same It will never decreaseThe net entropy will increase or stay the same It will never decreaseSYSqSx0000 0SqT 0 only for a reversible processx0000 0 f Thermal Physics. Thermodynamics. kinetic theory. statistical mechanics. Derive all equilibrium properties of a . macroscopic molecular . system. . f. rom the laws of molecular dynamics:. . . Statistical physics. Erice (. Sicilia. ) - 2013. Contact : . Patxi. DUTHIL. duthil@ipno.in2p3.fr. Basic . thermodynamics. Contents. CERN Accelerator School – 2013. Basic thermodynamics . Thermal engineering. No. of chapter : 06. Total marks :150. Theory paper: 100. External 0ral : 25. Internal marks (submission): 25. No. of practical's : 09. Thermal engineering. Reference books:. A text book of thermal engineering (R.S. Khurmi, J.K. Gupta). Study guide is posted in the homework of the webpage.. Exam 1 is on . Friday, February 3. th. .. We often speak of . heat . as though it were a . material . that flows from one object to another; it is not..