Kp (P1+P3) Flashcards
1
Q
What is a homogeneous reaction?
A
where all reactants and products are in the same phase
2
Q
To calculate mole fraction…
A
number of moles of gas / total number of moles of all gases
3
Q
To calculate partial pressure…
A
mole fraction x total pressure
4
Q
All mole fractions within a mixture should always add up to…
A
1
5
Q
Write the Kp expression for
A + 2B <–> 3C +4D
A
Kp = (ppC)^3 (ppD)^4 / (ppA) (ppB)^2
6
Q
What affects the value of Kp?
A
ONLY TEMPERATURE
7
Q
Decrease in temp causes the value of Kp to…
A
INCREASE
8
Q
How do you work out partial pressures?
A
Mole fraction x total pressure
9
Q
How do you work out mole fractions?
A
number of moles of gas (e.g. A) / total moles of gases
10
Q
What is dynamic equlibrium?
A
- the forward and the reverse reactions proceed at equal rates.
- the concentration of reactants and products remain constant.
