PPT-Entropy (S): a measure of the dispersal of energy, as a function of temperature, in a

To understand entropy we need to consider probability Think about a deck of cards Only one way to be ordered in sequence like a new deck Many ways to be out of sequence Improbable after shuffling. Energy. Entropy. Free Energy. What is Force ?. F. =. m. a. force. mass. accel. .. What is Force ?. S . F. =. m. a. “Sum of the forces on an object is (directions matter) is equal to the mass of that object multiplied by it’s acceleration”. Principles of Chemical Reactivity: . Entropy and Free Energy. Chemical Kinetics provides us with information about the rate of reaction and how the reaction proceeds.. Chemical Thermodynamics provides us with information about equilibrium and whether or not a reaction is Spontaneous.. Contributions by:. John L. Falconer & Will Medlin. Department of Chemical and Biological Engineering. University of Colorado. Boulder, CO 80309-0424. Supported by the National Science Foundation. MEANING OF THE TERM? . CLUE. WHAT 8 LETTER WORD INDICATES THE CONDITION OF THE CLASS IN THE ABSENCE OF THE TEACHER. ENTROPY. DISORDER . DENOTED BY S. IS A MEASURE OF DISORDER OF A SYSTEM. IT CAN BE ZERO AT ZERO KELVIN AND THIS ASSUMES A PERFECTLY ORDERED CRYSTAL. Lecture . 2. Getting to know Entropy. Imagine a box containing two different gases (for example, He and Ne) on either side of a removable partition.. What happens when you remove the partition?. Did the energy state of the system change?. Chapter 17. Homework. Due with next test. Page 807 . 23-71 . odd. Equations Sheet. Thermodynamics vs. Kinetics. Kinetics deals with . r. ate . of a . reaction, . this depends . on the pathway from reactants to products.. Consider working substance to be an . Ideal . Gas. Note . p. – . v. axes. i. ) substance starts at with . temperature T2, adiabatic compression to B.. Since . Work done . on . substance increases internal energy.. Free Falling Objects. A free falling object is one that moves under the influence of gravity. The term . free fall. includes objects that are initially at rest OR have initial upward/downward velocity. Acceleration due to gravity, . Lecture 4 . The Third Law. “. If the entropy of each element in some crystalline state may be taken as zero at the absolute zero of temperature, every substance has a finite positive entropy, but at absolute zero, the entropy may become zero, and does so become in the case of perfectly crystalline substances. :. Simple Models. of . Paramagnetism. First a Quantum System of Spins . s = ½ . Paramagnetic Materials. The following is a simple model to develop our understanding of . Statistical Mechanics . in . 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;. 9 weeks. Spontaneity, Entropy and Free Energy. Chapter 17. Equation Sheet. Entropy. Spontaneous or thermodynamically favored (or sometimes just favored) means a reaction happens. The . common . characteristic . 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.. –. Part . 2 . –. Efficiency. , . Irreversibility, Tipping . Points. Valerio Lucarini. Meteorological. . Institute. , . University. . of . Hamburg. Dept. . . Mathematics. and . Statistics. , .