Term
If ΔH is negtive
ΔS is postive
The rxn will be? |
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Definition
spontaneous at all temperatures
ΔG=ΔH-TΔS
(-3) - (298k)(5)
neg answer
heat is released, is already disordered |
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Term
If ΔH is (+)
ΔS is (-)
The rxn will be? |
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Definition
NONspontaneous at all temperatures
ΔG=ΔH-TΔS
(+3)-(298)(-3)
3- (-894)
=+ 897
a very POSITVE Gibbs = bad |
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Term
If ΔH is (+)
ΔS is (+)
The rxn will be? |
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Definition
If ΔH is (+): energy absorbed (endothermic)
If ΔS is (+): energy is absorbed
(b/c Q/T is postive) |
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Term
If ΔH is (-)
ΔS is (-)
The rxn will be? |
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Definition
spontaneous at LOW temps
If ΔH is (-): exothermic (doesnt need extra heat)
ifΔS is (-): energy being released |
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Term
| if a reaction is spontaneous is it fast? |
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Definition
| Not neccessarily, a slow rxn can still be spotaneous (without any energy output) |
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