<p>I’m taking an online course and I can’t figure out 1 question:A decomposition reaction was studied on three different surfaces. The activation energy on each surface is shown in the table below. Which surface represents the best heterogeneous catalyst if the activation energy of the uncatalyzed reaction is 452kJ/mol?
surface and Ea(kJ/mol)
Tungsteng–248
platinum–331
copper–204
A)uncatalyzed
B)tungsten
C)copper
D)platinum</p>
<p>copper or platinum?</p>
<p>k</p>
<p>It’s copper. Catalysts increase the rate of a reaction by lower the activation energy, so the choice with the lowest activation energy represents the most effective catalyst.</p>