Thermochemistry

The capacity to move matter (do work) or transfer heat

• The energy associated with an object by virtue of its motion
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• The energy an object has by virtue of its position in a field of force
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The sum of the kinetic and potential energies of the particles making up a substance

E_tot = E_K + E_P = U

Energy may be converted from one form to another, but the total quantity of energy remains constant

• The energy interaction between charged particles
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The energy that flows into or out of a system because of a difference in temperature between the system and its surroundings

Heat flow from a region of higher temperature to one of lower temperature; once the temperatures become equal the heat flow stops

A value that is proportional to the average kinetic energy of the molecules

The value of q required to return a system to the given temperature at the completion of the reaction