Question

Carbon monoxide and nitrogen monoxide react to produce carbon dioxide and nitrogen gas. If the system contains platinum, then less energy is required for the reaction to occur. Which term best describes the role of platinum in the system?

energy
catalyst
reactant
product

Answer 1

The term that best describes the role of platinum in the system is **catalyst**. A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process, and in this case, platinum helps the reaction occur with less energy required.