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13 Cards in this Set
- Front
- Back
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Thermodynamics
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the study of energy and its transformations
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Thermochemistry
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the study of relationships between energy changes involving heat and chemical reations
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Energy
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capacity to do work
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Heat
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energy transformed from one object to another because of a difference in temperature.
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calorie
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amount of heat energy required to raise the temperature of one gram of water by one degree celcius. The large Calorie (C not c) is used to measure food energy 1 Cal=1000 cal
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joule
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SI unit of energy 1 cal = 4.184J
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Enthalpy
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property of a system that accounts for heat flow between the system and theh surrounding at constant pressure
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State Function
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Enthalpy is a state functions, depends only on the present state of teh system not on the path the system took to reach that state, temperature pressure and location are some qualities that define the system (not state functions Im guessing)
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deltaH BDE
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Bond dissociation energy
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calorimetry
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calorimetry is the measurement of heat flow.
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Heat capacity
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denoted C, the heat required to raise the temperature of an object by 1 K, units in J/K
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molar heat capacity
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amount of heat absorbed by one mole of a substance when it experiences a one degree temperature change. The units are J/mol K.
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Specific Heat Capacity
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heat capacity of one gram of a substance. The units are J/g K.
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