Catalytic kev ua si yog hais txog lub peev xwm ntawm ib yam khoom rau catalyze, thiab yog ib qho ntawm cov khoom tseem ceeb ntawm cov catalyst. Kev tsim khoom lag luam feem ntau tau hais txog tus naj npawb ntawm cov reactants hloov mus rau cov khoom siv raw hauv ib chav tsev ntim (lossis loj) ntawm catalyst ib chav tsev lub sij hawm, xws li tus naj npawb ntawm kilograms ib cubic meter ntawm catalyst uas tuaj yeem hloov cov ntaub ntawv raw hauv ib teev.
