In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

This quantity is often confused with a quantity symbolized delta G double dagger. The Hammond Postulate bases the structure of an intermediate on the difference in this quantity between the transition state and that of the reactants or products. It is divided by the product of reaction rate and temperature in the Arrhenius Equation, which calculates this quantity given a known reaction rate. Catalysts lower, for 10 points, what amount of energy that must be overcome for a reaction to take place
Science