CHEM102 Study Guide - Final Guide: Iodine Clock Reaction, Brilliant Blue Fcf, Svante Arrhenius

• School: University of Alberta
• Department: Chemistry
• Course: CHEM102
• Professor: Sai Yiu

Document Summary

Experiment m: the effect of temperature on rate of reaction. Understand the effect of a catalyst on a reaction rate. Understand the effect of changing temperature on the rate of a chemical reaction. Molecules are continually undergoing collisions, and simply rebound like billiard balls. For a chemical reaction to occur, the reactants must collide with enough energy for their because they are unchanged. electronic orbitals to overlap and temporary form an activated complex or transition state. Activated complex unstable and undergoes further changes (such as rearrangement of molecular structure, breaking of existing bonds and making new bonds). High energy requirement is to overcome the repulsion of the negative charges of the electronic orbitals. The minimum energy required to form an activated complex is called the activation energy (ea). The larger the value of ea the fewer molecular collisions that would be energetic enough to form an activated complex.