scroll to top
Stuck on your essay?
Get ideas from this essay and see how your work stacks up
Word Count: 1,325
Catalysts Fine Particle In Industry Catalyst Catalysis alteration of the speed of a chemical reaction through the presence of an additional substance known as a catalyst that remains chemically unchanged by the reaction Enzymes which are among the most powerful catalysts play an essential role in living organisms where they accelerate reactions that otherwise would require temperatures that would destroy most of the organic matter A catalyst in a solution with-or in the same phase as-the reactants is called a homogeneous catalyst The catalyst combines with one of the reactants to form an intermediate compound that reacts more readily with the other reactant The catalyst however does not influence the equilibrium of the reaction because the decomposition of the products into the reactants is speeded up to a similar degree An example of homogeneous catalysis is the formation of sulfur trioxide by the reaction of sulfur dioxide with oxygen in which nitrogen dioxide serves as a catalyst Under extreme heat sulfur dioxide and nitrogen dioxide react to form sulfur trioxide and the intermediate compound nitric oxide which then reacts with oxygen to re-form nitrogen dioxide The same amount of nitrogen dioxide exists at both the beginning and end of the reaction A catalyst that is in a separate phase from the reactants is said to be a heterogeneous or contact catalyst Contact catalysts are materials with the capability of adsorbing molecules of gases or liquids onto their surfaces An example of heterogeneous catalysis is the use of finely divided platinum to catalyze the reaction of carbon monoxide with oxygen to form carbon dioxide This reaction is used in catalytic converters mounted in automobiles to eliminate carbon monoxide from the exhaust gases Examples Catalysts are substances that trigger or speed up chemical reactions without chemically altering the catalysts in the process A catalyst combines with a reactant to form an intermediate compound that
@Kibin is a lifesaver for my essay right now!!
- Sandra Slivka, student @ UC Berkeley
Wow, this is the best essay help I've ever received!
- Camvu Pham, student @ U of M
If I'd known about @Kibin in college, I would have gotten much more sleep
- Jen Soust, alumni @ UCLA