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.

If an inhibitory catalyst were added to the reaction __________.

the concentration of YZ would decrease at equilibrium

the concentration of YZ would increase at equilibrium

the activation energy would decrease

the activation energy would increase

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