Reaction Rates and Reaction Order

Practice Questions

GRE Subject Test: Chemistry › Reaction Rates and Reaction Order

Questions
5
1

For the reaction, , the initial rate of the reaction was determined and the values are tabulated below.

Screen shot 2015 11 27 at 5.58.58 am

Determine the overall order for the rate law of this reaction.

2

You want to find the order of each reactant by manipulating the reactant concentrations in multiple trials. The table below shows the effect of altered reactant concentrations on initial reaction rate.

Using the above trials, write the rate law for the reaction.

3

For the reaction, , the initial rate of the reaction was determined and the values are tabulated below.

Screen shot 2015 11 27 at 5.48.47 am

What is the overall order for the rate law of this reaction?

4

A scientist is studying a reaction, and places the reactants in a beaker at room temperature. The reaction progresses, and she analyzes the products via NMR. Based on the NMR readout, she determines the reaction proceeds as follows:

In an attempt to better understand the reaction process, she varies the concentrations of the reactants and studies how the rate of the reaction changes. The table below shows the reaction concentrations as she makes modifications in three experimental trials.

Reaction rates depend on reaction concentrations, as well as the reaction constant . The Arrhenius equation is used to calculate this constant. Which of the following factors is used in the Arrhenius equation?

I. Temperature

II. Activation energy

III. Reactant concentrations

5

A scientist is studying a reaction, and places the reactants in a beaker at room temperature. The reaction progresses, and she analyzes the products via NMR. Based on the NMR readout, she determines the reaction proceeds as follows:

In an attempt to better understand the reaction process, she varies the concentrations of the reactants and studies how the rate of the reaction changes. The table below shows the reaction concentrations as she makes modifications in three experimental trials.

Which of the following most closely approximates the rate law for this reaction?

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