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19 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Thermochemistry |
Relationship between chemicals (matter) and energy (heat) |
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Energy |
Capacity to do work (units of Joules) |
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Heat |
The flow of energy caused by a temperature difference between particles |
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Thermal energy |
Energy associated with the temperature of an object (depends on mass) |
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Temperature |
A measure of thermal energy |
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Kinetic energy |
Energy of motion |
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Potential energy |
Energy associated with the position of an object |
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Chemical energy |
Energy stored in the bonds and intermolecular forces (position of electrons and nuclei) |
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System |
The chemical reaction/process being studied |
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Surroundings |
Everything else/that isn't the system |
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Enthalpy |
Internal energy of a system |
Stored in bonds, IMF, rotation/movement |
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Calorimetry |
Measuring the heat/enthalpy of a system |
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Specific heat |
Amount of heat required to raise the temp of 1 gram of a substance by 1 degree (Celcius or Kelvin) |
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Heat capacity |
Heat required to raise the temp of a given quantity of a substance by 1 degree (Celcius or Kelvin) |
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Enthalpy of Formation |
Heat that results when 1 mol of a compound is formed from its elements |
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Hess's Law |
Another method for calculating change in enthalpy of rxn, it says that chemical reactions and thermodynamic properties are additive |
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Entropy (S) |
Measure of disorder |
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Gibbs free energy: the return |
◇G=◇G°+RTlnKc |
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Gibbs free energy |
◇G=◇H-T◇S |
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