chem thermo rules

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21 Terms

1
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+ΔG

nonspontaneous in forward direction

2
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-ΔG

spontaneous in the forward direction

3
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ΔG = 0

rxn at equilibrium

4
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-ΔH & +ΔS

spontaneous at all temps; -ΔG

5
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-ΔH & -ΔS

spontaneous at low temps

6
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+ΔH & +ΔS

spontaneous at high temps

7
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+ΔH & -ΔS

never spontaneous, +ΔG

8
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-ΔH

exothermic

9
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exothermic: high ΔS

spontaneous at all temps

10
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exothermic: low ΔS

spontaneous at low temps

11
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endothermic: high ΔS

spontaneous at high temps

12
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endothermic: low ΔS

spontaneous at all temps

13
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+ΔH

endothermic

14
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+E0cell

-ΔG

15
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-E0cell

+ΔG

16
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k>1

-ΔG; products favored

17
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k<1

+ΔG; reactants favored

18
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oxidation

e- in products

19
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reduction

e- in reactants

20
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cathode

reduction

21
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anode

oxidation