Complete the Following Statement: a Catalyst

question 38

Multiple Choice

Complete the following statement: A catalyst

• A) increases the activation energy.
• B) alters the reaction mechanism.
• C) increases the average kinetic energy of the reactants.
• D) increases the concentration of reactants.
• E) increases the collision frequency of reactant molecules.

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Definitions:

Broad

Descriptive of something with a wide scope, extent, or range; may refer to concepts or physical objects that cover a large area or numerous subjects.

Triplet

A term used in quantum mechanics and spectroscopy to describe a system or state with three closely related energy levels, or a spin state of a molecule in which two unpaired electrons have parallel spins.

Test-Statistic

A value calculated from sample data during a hypothesis test that is used to determine whether to reject the null hypothesis.

Two-Tail Test

A statistical test that determines the significance of a parameter by considering both ends (tails) of the distribution to test for extreme values.