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Moderate

Absorbance and Reaction Rate Changes Between Trials

APCHEM-Y6E6YL

Two trials of a reaction were run in a lab where absorbance data was collected over time.

In Trial 2, the absorbance values for the reaction for each unit of time were higher than they were for Trial 1.

Also, the rate of Trial 2 was higher than that of Trial 1.

Which of the following accounts for this data?

A

The concentration of one or more reactants was increased in Trial 2.

B

The concentration of the reactants in Trial 1 was higher than that in Trial 2.

C

The concentration of reactants was decreased for Trial 2.

D

Something interfered with the reaction.