Transcript 7.4 Qualitative Changes in Equilibrium Systems(Le

7.4 Qualitative Changes in
Equilibrium Systems
(Le Chatelier’s Principle)
Learning Goals …
… predict the direction of shift in equilibrium when
a change is made to a system
Ex) Co(H2O)62+ + 4 Cl-  CoCl42- + 6 H2O + heat
(violet)
(pink)
Volume is constant
Total pressure increased
Partial pressure of reactants
and products is constant
Volume is increased
Total pressure constant
Partial pressure of reactants
and products decreases
NO
SHIFT
SHIFTS TO
INCREASES
PRESSURE
Self Check
How prepared am I to start my homework? Can I …
… predict the direction of shift in equilibrium when
a change is made to a system
HOMEWORK
WS “Le Chatelier’s Principle”