________: when a chemical system at equilibrium is disturbed, it returns to equilibrium by counteracting the disturbance.
New cards
2
Solids
________ are always omitted from the expressions for Q and K.
New cards
3
K
An increase in temperature will change K. It will increase ________ for an endothermic, and decrease ________ for an exothermic.
New cards
4
chemical equilibrium
If a(n) ________ is disturbed by adding a reactant or product, the system will proceed in the direction that consumes part of the added species.
New cards
5
Qc
________ can be calculated at any point in a reaction.
New cards
6
Homogenous equilibrium
________: one in which all of the reactants and products are present in the same phase.
New cards
7
Heterogenous equilibria
________: contain reactants and products that are in two or more different phases.
New cards
8
concentration of products
The value of Qc depends on the ________ and reactants present at that particular moment.
New cards
9
Equilibrium constant
________ (K): the value of Q when the reaction is at equilibrium.
New cards
10
reversible reactions
For ________, catalysts increase the rates of the forward and ________.
New cards
11
gas phase solutions
For ________, the equilibrium constant may be expressed in terms of either the molar concentrations (Kc) or partial pressures (Kp) of the reactants and products.
New cards
12
SOLID
If what is added or removed is a(n) ________ or liquid, the reaction does not shift at all.
New cards
13
K
If ________ is very small, the mixture contains mostly reactants at equilibrium.
New cards
14
Equilibrium constant (K)
the value of Q when the reaction is at equilibrium
New cards
15
When Q < K*
* reaction must shift FORWARD
New cards
16
When Q > K*
* reaction must shift BACKWARD
New cards
17
When Q = K*
* reaction is at equilibrium, and will maintain constant concentration
New cards
18
Homogenous equilibrium
one in which all of the reactants and products are present in the same phase
New cards
19
Heterogenous equilibria
contain reactants and products that are in two or more different phases
New cards
20
Le Châteliers Principle
when a chemical system at equilibrium is disturbed, it returns to equilibrium by counteracting the disturbance
New cards
21
Result
A catalyst causes the system to reach equilibrium more quickly
Studied by 8 people
Note 
Flashcard (20)