Equilibrium II Flashcards
(5 cards)
1
Q
What are the steps to calculating Kc?
A
- Calculate concentration of reactants and products
- Write balanced chemical equation
- Write equilibrium constant for reaction
- Substitute equilibrium concentrations into expression
2
Q
What state are the reactions in Kp expressions?
A
Gas states
3
Q
What is the equilibrium expression in terms of the partial pressure of gases?
A
PcC(g)eqm x PdD(g)eqm/
PaA(g)eqm x PbB(g)eqm
PaA and PbB = equilibrium reactant partial pressure
PcC and PdD = equilibrium product partial pressure
4
Q
What are ignored in Kp equilibrium expressions?
A
Solids and liquids - in hetergeneous reactions
5
Q
When is the only time the Kp of a reaction changes?
A
If the temperature of the reaction changes - otherwise it is constant
