Question

Please help :)

1: Catalysts lower the activation energy of chemical reactions. How does this benefit the environment?

2: Chlorine free radicals are produced in the upper atmosphere when ultraviolet radiation interacts with chlorofluorocarbons (CHCs). The free radicals catalyze the conversion of ozone to oxygen. How is this catalysis harmful to humans

Answer 1

1. By using less energy, reactions that are catalysed are also more sustainable, and therefore better for the environment.

2. By catalysing the conversion of ozone into oxygen, the ozone layer sees a reduction, also reducing the amount of protection from direct UV rays given to humans and other forms of life by the ozone layer.