A catalyst is a substance that speeds up a chemical reaction without being consumed in the process. Think of it as a helper that makes things happen faster. For example, in the production of ammonia, a catalyst allows the reaction to occur at lower temperatures and pressures, saving energy and resources.
Catalysts are essential in many everyday processes, including car engines where they help convert harmful gases into less harmful emissions. By using catalysts, we can improve efficiency and reduce waste, making them crucial for both industrial applications and environmental protection.