The gaseous compound Z breaks down on heating. In the diagram below, Boltzmann distributions for Z at two different temperatures P and Q are shown. The lines X and Y show the activation energies for the decomposition of Z with and without a catalyst. Which curve and which line represent the decomposition of Z at the higher temperature and in the presence of a catalyst?
- Ahigher temperature: P; catalyst present: X
- Bhigher temperature: P; catalyst present: Y
- Chigher temperature: Q; catalyst present: X
- Dhigher temperature: Q; catalyst present: Y