Describe and explain the change, if any, to the percentage yield of $$$\mathrm{NH}_{3}(\mathrm{~g})$$$ produced in B compared to $$$\mathbf{A}$$$. ............................................................................................................................................... . ............................................................................................................................................... . .........................................................................................................................................

Chemistry

IGCSE&ALevel

CAIE

Exam No：9701_s24_qp_23 Year：2024 Question No：2(a)

Answer:

8.3.1.1 explain that, in the presence of a catalyst, a reaction has a different mechanism, i.e. one of lower activation energy

8.3.1.2 explain this catalytic effect in terms of the Boltzmann distribution

8.3.1.3 construct and interpret a reaction pathway diagram, for a reaction in the presence and absence of an effective catalyst