1
Q
what is dynamic equilibrium
A
when forward and reverse reactions in a closed system happen at the same rate and the concentration of the reactants and products stays the same
2
Q
what is Le Chateliers Principle
A
it states that if a system that is in dynamic equilibrium is subjected to a change in conditions the system will move in the direction to oppose the change
3
Q
what effects the value of Kc
A
a change in temperature
4
Q
ΔH for exothermic reaction
A
negative ΔH
4
Q
what happens to the equilibrium if Kc increases in value/ decreases in value
A
- the equilibrium moves to the right- forward direction (more product)
- equilibrium shifts to the left- backward direction (less product)
5
Q
A
6
Q
ΔH for endothermic reactions
A
ΔH positive
a-level chemistry
flashcards
Decks in class (22)
# Cards
-
chapter 14- alkenes26
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chapter 8- periodicity22
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chapter 4- energetics19
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chapter 15- Alcohols25
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chapter 5- kinetics7
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chapter 16- organic analysis12
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chapter 9- group 2- the alkaline earth metals17
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chapter 27- aromatic chemistry10
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chapter 6- equilibria7
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chapter 7- oxidation, reduction and redox reactions4
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chaspter 25- nomenclature and isomerism10
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19- equilibrium constant Kp5
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26- carbonyl compounds16
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17- Thermodynamics34
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28- Amines21
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18- kinetics18
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29- polymerisation13
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22- periodicity24
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30- amino acids, proteins and polypeptides22
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chapter 31- organic synthesis7
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32- structure determination10
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23- transition metals0
