 Units of catalytic activity

Catalytic activity is a measure of the effectiveness of a catalyst in speeding up a chemical reaction. The standard unit for catalytic activity is the **katal**. 1 katal is defined as the amount of catalyst that converts 1 mole of substrate per second under specified conditions (such as temperature, pressure, and concentration). In practice, catalytic activity can also be expressed in terms of other units, depending on the context and the specific reaction conditions.