Chemical Kinetics is another subject for which conceptual understanding is much more important for the MCAT than plug-and-chug quantitative problem solving. Every MCAT has questions calling upon you to exercise conceptual reasoning using Chemical Kinetics principles. Passages involving the interpretation of laboratory data to infer reaction order is fairly common as are basic questions regarding enzyme kinetics and questions on 'kinetic versus thermodynamic control'.

There is one type of quantitative kinetics question, however, which is very common, involving simple problem solving using half-life for first order kinetics. Most often though, the context will be radioactive decay rather than a chemical process. Radioactive decomposition is an important example of a first-order reaction process.