7.5 Reaction Quotient Q Flashcards
1
Q
What happens if the concentration of one of the reactants or products is zero?
A
The system will shift in the direction that produces the missing component
2
Q
What happens if all initial concentrations are not zero?
A
It is more difficult to determine the direction of the move toward equilibrium
3
Q
Why do we use the reaction quotient Q
A
If all initial concentrations are not zero
4
Q
How is Q determined?
A
By applying the law of mass action using initial concentration instead of equilibrium concentration
5
Q
When Q<K…
A
- Ratio of initial concentration of products to initial concentration of reactants is too small
- System will shift to the right, forming more products
6
Q
When Q=K
A
System is at equilibrium no shift will occur
7
Q
When Q>K…
A
- Ratio of initial concentration of products to initial concentration of reactants is too large
- System will shift to the left, forming reactants
