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| Description: Barriers to chemical reactions occur because a reactant molecule must pass through a high-energy transition state to form products. This free energy barrier is called the activation energy. Catalysts increase reaction rates by lowering the activation energy. Picture Stats: Views: 245 Filesize: 50.95kB Height: 253 Width: 482 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=34362 |