Exam #3 - KE = 12mv2 D Units of Energy – The SI unit of...

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Chemistry, Exam #3, Bowen Liu I. Chapter 5 – Thermochemistry A. Energy – The ability to do work or transfer heat. 1. Work: Energy used to cause an object that has mass to move. 2. Heat: Energy used to cause the temperature of an object to rise B. Potential Energy – Energy an object possesses by virtue of its position or chemical composition. C. Kinetic (h ) Energy – Energy an object possesses by virtue of its motion.
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Unformatted text preview: KE = 12mv2 D. Units of Energy – The SI unit of energy is the joule (J). An older, non-SI unit is still in widespread use: The calorie (cal). 1 cal = 4.184 J E. System and Surroundings – The system includes the molecules that we want to study (i.e., the H2 and O2 molecules). The surroundings are everything else (i.e., the cylinder (h ) and piston)....
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