How Does a Catalyst Increase the Rate of a Reaction

question 41

Multiple Choice

How does a catalyst increase the rate of a reaction?

• A)It lowers the activation energy.
• B)It is neither created nor consumed in a reaction.
• C)It has nothing to do with the rate of reaction.
• D)It increases the energy difference between the reactants and products.
• E)It raises the activation energy of the reactants,which makes the reaction proceed faster.

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Definitions:

Normal Curve

Another term for a normal distribution, characterized by its bell-shaped curve where most observations cluster around the central peak and the probabilities for values further away from the mean taper off equally in both directions.

Mean

The arithmetic average of a set of values, found by dividing the sum of all values by the number of values.

Median

The midpoint in a set of values, such that 50% of the cases in a distribution fall below the median and 50% fall above it.

Mode

The most frequently occurring score in a distribution.