Chemical Kinetics and Rate Laws (5E) Practice Test

A reaction relevant to food spoilage is monitored: $A \rightarrow P$. Two experiments are run with identical initial A but different temperatures. The measured initial rate at 40°C is higher than at 20°C.

Which scenario best illustrates the concept of activation energy as the cause of this difference?

A clinical lab evaluated decomposition of a disinfectant (D) used on medical devices: $D \rightarrow$ products. The reaction was run at constant temperature and pH. The initial rate was measured at two initial concentrations.

Data:

D = 0.30 M, rate = $9.0\times10^{-5}$ M/s

D = 0.60 M, rate = $9.0\times10^{-5}$ M/s

Based on the data, what is the order of the reaction with respect to D?