12 Rates & Equilibrium constant (Equilibrium constant only) Flashcards
1
Q
When is Kp used?
A
reversible reaction
occurring in the gas phase
2
Q
What is Kp
A
A value that expresses the relationship between the amounts of gaseous products and gaseous reactants present at equilibrium.
3
Q
Homogeneous system
A
A system where all the reactants and products are in the same phase.
4
Q
Partial pressure =
A
Partial pressure = Mole fraction x Total pressure.
5
Q
Total pressure
A
Sum of all partial pressures.
6
Q
Kp eqn?
A
Kp=(Pc)^c(Pd)^d/ (Pa)^a(Pb)^b
7
Q
Value of Kp and its meaning?
A
Large Kp products favoured
Small Kp favours reactants
8
Q
Factors affecting Kp
A
Temperature depends on endo/exo reaction
9
Q
Factors NOT affecting Kp
A
Changing the concentration, pressure or adding a catalyst would have no effect.
