, 10 -
Equilibrium (
Chemical Equilibrium
· Reversible Reactions -
where products in a reaction can reach
together to reform original reactants
X +
+ -
2
· One way will be exolhermic
· One was will be endolhermic
· Will eventually reach dynamic equilibrium
· This occurs when Ro Ro
forwards: backwards
o can only occur in a closed system
Le Chatilliers Principle
·
Predict
how equilibrium will
mix ifits conditions are altered
change
When system
·
a is subject to chance, the system will shiftto
lesson the effectofthatchanse
·
Chansing temperature -
favours endothermic reaction when and
favours exothermic reaction when N
·
Changing Pressure:Pressure favours side with fewer sas moles
o
changing concentration: ↑ cone favours reaction producing products
·
catslists
-
don't affectequilibrium position
affectforward and
-
backward equally
-
equilibrium reached faster
Dynamic Equilibrium
· occurs with reversible reactions in closed systems
· Chansing conditions affects equilibrium
E
quilibrium Constant -
Kc
o indicates position of equilibrium for a reaction ata certain temperature
·
concentrations ofreactants and products need to be known
[C] [0/d
aA +b8c dDlTc
+
=
[A] [B]b
· Varying units dependanton reaction
Equilibrium (
Chemical Equilibrium
· Reversible Reactions -
where products in a reaction can reach
together to reform original reactants
X +
+ -
2
· One way will be exolhermic
· One was will be endolhermic
· Will eventually reach dynamic equilibrium
· This occurs when Ro Ro
forwards: backwards
o can only occur in a closed system
Le Chatilliers Principle
·
Predict
how equilibrium will
mix ifits conditions are altered
change
When system
·
a is subject to chance, the system will shiftto
lesson the effectofthatchanse
·
Chansing temperature -
favours endothermic reaction when and
favours exothermic reaction when N
·
Changing Pressure:Pressure favours side with fewer sas moles
o
changing concentration: ↑ cone favours reaction producing products
·
catslists
-
don't affectequilibrium position
affectforward and
-
backward equally
-
equilibrium reached faster
Dynamic Equilibrium
· occurs with reversible reactions in closed systems
· Chansing conditions affects equilibrium
E
quilibrium Constant -
Kc
o indicates position of equilibrium for a reaction ata certain temperature
·
concentrations ofreactants and products need to be known
[C] [0/d
aA +b8c dDlTc
+
=
[A] [B]b
· Varying units dependanton reaction
