CHE2B-LEC 01 CHAP 07

CHE2B-LEC 01 CHAP 07 - Chapter 7 Why study thermochemistry?...

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TOUPADAKIS Chapter 7 Lecture 1 Chapter 7 What determines which reactions can occur? Why places near ocean or large lakes have mild climate with no extreme temperatures? How is sun’s energy stored in carbohydrates and how is it released in a living tissue? Why study thermochemistry? In order to answer questions like:
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TOUPADAKIS Chapter 7 Lecture 1 Lecture 1 Basic definitions of work and energy. Energy possessed by a system (kinetic and potential). Energy in transfer between a system and its surroundings (heat and work). Three types of systems (open, closed, isolated). Thermodynamics versus thermochemistry. Exothermic versus endothermic reactions. Heat capacity and its measurement. Sign conventions. Types of work (pressure-volume work).
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TOUPADAKIS Chapter 7 Lecture 1 Work and Energy Work (physics) Motion against an opposing force. Energy The capacity of a system to do work. Work (a simple definition from thermodynamics ) The energy used to cause an object to move against an opposing force. Work (a general definition from thermodynamics) Work is energy flowing across a system’s boundary for any reason, except of a temperature difference between the system and its surroundings.
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Chapter 7 Lecture 1 Work is energy in transfer. Therefore we cannot say for example that a system contains 100 J of work. Work is a form of energy and therefore it has the same
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CHE2B-LEC 01 CHAP 07 - Chapter 7 Why study thermochemistry?...

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