Topic 10/11 Equilibrium

Question 1

Explain why increasing pressure of a reaction that is hetereogenously catalysed has little affect on rate.

Answer 1

The reaction takes place on the surface of the catalyst.

There are multiple active sites on the surface of the catalyst that are saturated with molcules of the reactant.

Question 2

Explain the effect of increase of pressure on the value of Kp

Answer 2

There is little or no change in the value of Kp as equilibrium will shift to the favoured reaction.
The value of Kp will balance out.