Quiz 2 Flashcards
1
Q
ΔHrxn given info?
A
= nΔH(products) - nΔH(reactants)
2
Q
ΔSrxn given info?
A
= nΔS(products) - nΔS(reactants)
3
Q
ΔGrxn given info?
A
= nΔG(products) - nΔG(reactants)
4
Q
k =?
A
ºC + 273.15
5
Q
What is entropy?
A
A measure of disorder
6
Q
When is a reaction spontaneous?
A
when ΔS(universe) > 0
and
when ΔG(universe) < 0
7
Q
When is a reaction nonspontaneous?
A
when ΔS(universe) < 0
and
when ΔG(universe) > 0
8
Q
When is a reaction at equilibrium?
A
When ΔG or ΔS = 0
9
Q
ΔGrxn not given info?
A
ΔH - TΔS
10
Q
ΔSº surr ?
A
= - ΔHsys / T
11
Q
ΔS(universe) = ?
A
= ΔS(sys) + ΔS (surr)
12
Q
ΔGrxn not given info?
A
-TΔS
13
Q
Temp. spont/ nonspont?
A
T= ΔHrxn/ΔSrxn
