Lecture 1 Thermochemistry

Lecture 1 Thermochemistry - CHM139fall2011 Jockusch...

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CHM 139 fall 2011 Jockusch lecture notes Course text: Silberberg 6 th edition Ch. 6: Thermochemistry: Energy Flow and Chemical Change Ch. 20:Thermodynamics: Entropy, Free Energy, and the Direction of Chemical Reactions Ch. 21:Electrochemistry: Chemical Change and Electrical Work It’s all about ENERGY NASA, 2000 +9.4
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Hi! My name is Rebecca Jockusch. I am a physical and analytical chemist . My research uses lasers and mass spectrometers to better understand molecular properties including shape (of big molecules like proteins) and the details of intermolecular and intramolecular interactions. In this 3 rd portion of the course, we will explore basic energy concepts , how these relate to chemistry and, of course, to real life. SOME ADVICE : The BEST way to succeed in this course is to prepare for lecture (pre read the text) and to work (and re work, and re work) problem sets. ONLY use the solutions manual to CHECK your answers. If they are incorrect, re read and re work the in text and in class examples. Come to office hours or talk with your peers to get help. 2
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Announcements Term test #2 is this Monday (November 14 th ) from 18:00 19:30. This term test will cover Prof. Walker’s materials. Jockusch’s materials are not covered on the midterm. I will be using the iClickers, so please bring yours to future lectures. CHM139 F2011 Jockusch , Thermochemistry 13
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Ch. 6: Thermochemistry Energy Flow and Chemical Change Energy: the capacity to do work or supply heat. Change in Energy = work + heat Energy is measured in Joules or kiloJoules 1 Joule = 1 kg m 2 /s 2 1 calorie = 4.184 J 1 dietary “Calorie” = 1000 calories = kcal 1 British Thermal Unit (BTU) = 1055 J
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Energy
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Lecture 1 Thermochemistry - CHM139fall2011 Jockusch...

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