Systems and surrounding - lose or gain energy (in the form...

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Systems and surrounding When we focus on a study of energy changes we look at a small, well defined and isolated part of the universe - the flask or container the reactants are in. This is called the system . Everything else is called the surroundings . Usually the system is isolated from its surroundings such that there will be an exchange of energy between system and surroundings, but not matter. Thus, the system will contain the same mass after an experiment, but the system can
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Unformatted text preview: lose or gain energy (in the form of heat , work , or both ). Lowering the energy of the system Systems tend to attain as low an energy as possible Systems with a high potential energy are less stable and more likely to undergo change than systems with a low potential energy. Like a shopping cart at the top of a hill, chemical reactants move spontaneously toward a lower potential energy when possible ....
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This note was uploaded on 11/22/2011 for the course CHEMISTRY CHM1025 taught by Professor Laurachoudry during the Fall '10 term at Broward College.

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