| Select | | View | Download | | 53.1 Characteristics of catalysts | | |
| 53.2 Catalysts work by providing an alternative pathway with lower activation energy | | |
| 53.3 Effect of catalyst on reversible reactions | | |
| 53.4 Enzymes in the production of alcoholic drinks | | |
| 53.1 Characteristics of catalysts (bilingual version) | | |
| 53.2 Catalysts work by providing an alternative pathway with lower activation energy (bilingual version) | | |
| 53.3 Effect of catalyst on reversible reactions (bilingual version) | | |
| 53.4 Enzymes in the production of alcoholic drinks (bilingual version) | | |
| Catalysis and industrial processes (combined version) | | |
| Catalysis and industrial processes (bilingual, combined version) | | |