5.1.2 Equilibria Flashcards
1
Q
what is partial pressure
A
- the pressure gas would exert if it alone occupied the volume occupied by the whole mixture
- pressure caused by a basis proportional to the number of particles of the gas
2
Q
give the partial pressure equation
A
Pg (partial pressure of gas)/Pt(total pressure)=ng(mols of gas)/Nt(total mols of gas)
3
Q
describe the effect of increasing temperature on Kc and Kp
A
- causes the endothermic reaction to be favoured
- Kp increases id delta H is positive and decreases if delta H is negative
4
Q
describe the effect of decreasing temperature on Kc and Kp
A
- causes the exothermic reaction to be favoured
- Kp decreases if delta H is positive and increases if delta H is negative
5
Q
what is the effect of concentration and pressure on Kp
A
equilibrium shifts but Kp does not change
6
Q
what is the effect of catalysts on Kp and Kc
A
no effect
7
Q
what is a heterogeneous system
A
where one or more substance are in a different state to the others in the reaction
8
Q
what is a homogeneous system
A
where all substances are in the same state
