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16 Cards in this Set
- Front
- Back
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What is a reaction coordinate diagram? |
A plot of the energy state/stability of molecules vs. the progress of a reaction |
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Lower energy means ______ stability. |
More |
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Higher energy means ______ stability. |
Less |
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What has happened when a molecule becomes less table? |
There has been an input of energy |
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What is the transition state of an A→B reaction? |
The highest energy point on the path from A to B-- point of most instability |
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What is the free energy of activation? |
The amount of energy needed for a reaction to take place-- surmounting the reaction barrier |
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What is the standard free energy change? |
The difference in energy between the reactants and products of a reaction |
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What does the symbol ‡ signify on an energy vs. reaction progress graph? |
Transition state |
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What does the symbol ∆G‡ signify on an energy vs. reaction progress graph? |
Free energy of activation |
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What does the symbol ∆G˚ signify on an energy vs. reaction progress graph? |
Standard free energy change |
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Products are generally at a ______ energy state than reactants. |
Lower |
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What must be true about the energy states of products vs. reactants for a reaction to be spontaneous? |
The energy level of the products must be lower than the reactants |
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What value represents the energy lost or gained by a reaction? |
Standard free energy change |
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Activation energy is the ___________ factor of the reaction. |
Rate-determining |
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Activation energy is generally much ______ than standard free energy change. |
Larger |
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How are enzymes different than reactants? |
They are not used up or permanently changed by a reaction taking place |
