PPT-Thermodynamics

EndothermicExothermic Calories Compounds Compounds generally refer to ionic substances but molecular substances can be compounds too Compounds are two or more different atoms chemically combined. 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. 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. [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 . Lecture 1. Plan of the Course. The Geochemical Toolbox. Thermodynamics. Kinetics. Aquatic systems. Trace elements & magmatic systems. Isotopes. Radiogenic. Stable. The Big Picture: Cosmochemistry. Physics Lecture Notes. The Laws of Thermodynamics. FOUNDRY: It requires about 289 Joules of heat to melt one gram of steel. In this chapter, we will define the quantity of heat to raise the temperature and to change the phase of a substance. . 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. 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. ~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. 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;. 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. . Thermometry. Concept of temperature. Boyle’s Law. Charles’ Law. Thermometers. Thermocouple. Calorimetry. Platinum resistance scale. Absolute zero. Lower fixed point. Temperature gradient. Thermodynamic . 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