Biology 1001A Chapter Notes - Chapter 1: Thermal Equilibrium, Chemical Energy, Jmol
4 Apr 2017
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Document Summary
Thermodynamics is the study of the energy changes involved in physical and chemical processes. Thermochemistry is the branch of thermodynamics that investigates the heat flow that occurs during these reactions. Heat always flows from the warmer object to the cooler object. System is the part of the universe that one wants to study. Surroundings are the remaining parts of the universe that can interact with a system under study. Open system can exchange both matter and energy with its surroundings a. Closed system can exchange energy but not matter with its surroundings a. Isolated system exchanges neither matter nor energy with its surroundings a. Pressure-volume work is the work involved in the expansion or compression of gases. Heat energy (thermal) which is the energy transferred due to a temperature difference between the system and the surroundings. Kinetic energy is the energy associated with motion. Potential energy is stored energy or the energy a body possesses due to its position.
