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15 Cards in this Set
- Front
- Back
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Energy conversion is required for these three types of work |
Osmotic, chemical, mechanical |
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What is governed by thermodynamics |
Whether a reaction will occur, what direction will it occur, what extent the reaction will occur |
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Energy |
The capacity of a system to do work or exchange heat |
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Isolated system |
Exchanges neither matter nor energy with its surroundings |
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Closed system |
Exchanges only energy and not matter with its surroundings |
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Open system |
Exchanges both energy and matter with its surroundings |
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1st law of thermodynamics |
Conservation of energy |
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4 storage locations of energy within a molecule |
Covalent bonds, non covalent interactions, levels of freedom in its structure, makeup of subatomic parts |
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Enthalpy |
Heat content of the system |
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Heat of formation definition |
The energy difference between a molecule and its individual unbonded atoms |
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Heat of formation is negative because |
Energy is given off |
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Delta H is negative in |
Exothermic reactions |
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Second law of thermodynamics(general) |
Energy transferred between the system and its surroundings become unusable |
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Entropy |
Quantitative measure of disorder |
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6 factors affecting entropy |
Volume change, temperature change, molar mass, concentration gradient, chemical reactivity, molecular complexity |
