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16 Cards in this Set
- Front
- Back
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entropy (S) |
the measure of disorder in a system positive is is more random change in S phase = Hphase/Tphase more complex molecuse in same state have higher entropes, however g is the highest change in s surondings s -hrxn/T positive product favored |
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Second law of Thermodynamics |
The total entropy of the universe is continually increasing |
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Third law of Thermodynamics |
the entropy of a pure, perfectly formed crystal at 0 K is zero |
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Gibbs free energy |
A thermodynamic state function relating enthalpy, temperature, and entropy |
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Salt bridge |
a device for maintaining the balance of ion charges in the compartments of an electrochemical cell |
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condensation |
is the opposite of vaporization |
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H negative then enthalpy is favored |
S posivite entropy favored |
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if G is negative |
reaction is product favored |
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change in Grxn |
equals work max |
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postive s of universe |
spontaneous |
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Reaction Type 1 |
delta H is negative so exothermic Delta s is positive spontaneous at all temperatures (s of universe is positive) |
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Reaction type 2 |
delta H is negative so exothermic Delta S is negative spontaneous at lower temperatures |
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Reaction type 3 |
Delta H is positve so endothermic Delta S is postive spontaneous at higher temperatures |
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Reaction Type 4 |
Delta H is positive so endothermic Delta S is negative not spontaneous at any temperature Delta S of universe if negative |
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negative E cell |
not product favored |
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multiply by moles of electrons multiple by moles of product multiple by F divide by amp |
get seconds |
