Test: MCAT Physical

If the reactants and/or products in a chemical reaction are gases, the reaction rate can be determined by measuring the change of pressure as the reaction proceeds. Consider the following reaction and pressure vs. reaction rate data below.

 


Trial

PXY(torr)

PZ(torr)

Rate (torr/s)

1

100

200

0.16

2

200

200

0.32

3

200

100

0.04

4

200

150

0.14

 

1.

What is the value of the rate constant, k, for this reaction?

k = 2 * 10-13

k = 2 * 10-10

k = 1.6 * 10-13

k = 1.6 * 10-10

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