Chemistry: Thermodynamics Question HELP
[From: ] [author: ] [Date: 11-04-23] [Hit: ]
if the products have less energy than reactants, then D H will be negative, indicating energy was lostIf D G is negative, the reaction is spontaneous.If D G is positive, the reaction is not spontaneous.......
I attached some links to some useful places that give nice explanations for all the concepts in general for chemistry as well as practice. Ignore the fact that some of these are for general chem since it is all the same. Good luck.
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D S is positive if things are going to more disorder.
D S is negative if things are going to less disorder.
if the products have less energy than reactants, then D H will be negative, indicating energy was lost
If D G is negative, the reaction is spontaneous.
If D G is positive, the reaction is not spontaneous.
a) if H = + and S = +, G = - and this is spontaneous at all temperatures, more disorder, energy input
b) if S = -, H = -, G = -, spontaneous at low temperature, less disorder, energy release
c) for G = + nonspontaneous at all temperatures, less disorder, energy input
d) S = +, H = -, G = - at high temperatures, more disorder, energy release
e) G = 0 is what happens at a substance's and boiling point but this doesn't mean that deltaH and deltaS are 0
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