Chemical Reactions: Energy, Rates, and Equilibrium
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| a measure of the transfer of thermal energy | Heat
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| The amount of energy that must be supplied to break a bond and separate the atoms in an isolated gaseous molecule. | Bond dissociation energy
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| a process or reaction that absorbs heat | Endothermic
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| a process or reaction that releases heat | Exothermic
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| the difference between the energy of bonds broken in reactants and the energy of bonds formed in products. | Heat of reaction or enthalpy change
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| a measure of the amount of energy associated with substances involved in a reaction. | Enthalpy
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| a process or reaction that, once started, proceeds on its own without any external influence. | Spontaneous process
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| a measure of the amount of molecular disorder in a system | Entropy
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| a measure of the increase in disorder or decrease in disorder as a chemical reaction or physical change occurs. | Entropy Change
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| a measure of the change in free energy as a chemical reaction or physical change occurs. | Free energy change
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| a spontaneous reaction or process that releases free energy and has a negative delta G. | Exergeonic
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| a non-spontaneous reaction or process that absorbs free energy and has a positive delta G. | Endergonic
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