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Equilibrium quiz

TermDefinition
Reactions which go into completion Reactions which have a distinct endpoint. The reaction stops when one or more of the reactants runs out and no more products can be produced.
3 reasons why reactions go into completion 1. Gas is formed 2. A precipitate is formed (insoluble solution in a reaction) 3. A non electrolyte is formed
Reversible reaction chemical reactions which can occur in both the forward and reverse directions
Chemical equilibrium Reactions which appear to stop somewhere in the middle, but which are actually continuing to occur in both the forward and reverse directions simulaneously
Equillibrium must exist in which type of system A closed system
Equillibrium
Reactions which go into completion Reactions which have a distinct endpoint. The reaction stops when one or more of the reactants runs out and no more products can be produced.
3 reasons why reactions go into completion 1. Gas is formed 2. A precipitate is formed (insoluble solution in a reaction) 3. A non electrolyte is formed
Reversible reaction chemical reactions which can occur in both the forward and reverse directions
Chemical equilibrium Reactions which appear to stop somewhere in the middle, but which are actually continuing to occur in both the forward and reverse directions simulaneously
Equillibrium must exist in which type of system A closed system
Equillibrium The state at which the rate of the forward and reverse reactions are equal
What does RECC mean when it comes to equilibrium Rate equal concentration constant
Dynamic equilibrium The state at which neither the forward or reverse reactions stop
All types of equilibrium - Phase equilibrium - Solution equilibrium - Chemical equilibrium
phase equilibrium occurs during phase changes ex: Ice to water
Solution equilibrium - Occurs in saturated solutions - Rate of dissolving = rate of crystallization
Chemical equilibrium Occurs in reversable chemical reactions
LeChateirs principle When a change is applied to a system at equilibrium, the reaction will shift in such a way to relieve the change and reestablish equilibrium.
How does concentration affect equilibrium shifts ADD AWAY TAKE TOWARDS (ex. if you add more of a substance, the reaction will shift away and if you remove a substance it will move towards that side)
How does pressure affect equilibrium shifts if pressure is added the system will shift to the side of equilibrium which contains fewer moles, if moles on both sides are equal then pressure will have no affect on equilibrium (Increase pressure ---> fewer moles, Decrease pressure -----> more moles)
How does temperature affect equilibrium shifts Increase temperature ------> Endotermic side Decrease temperature ------> Exothermic side
How does a catalyst affect equilibrium shifts A catalyst will speed up both the forward and reverse reaction equally by lowering activation energies, A system at equilibrium will reach equilibrium faster if a catalyst is added.
Created by: 29wernera
 

 



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