The Kinetics of a Reaction Is Studied at 25 $\degree$ C and at 50

question 36

Multiple Choice

The kinetics of a reaction is studied at 25 $\degree$ C and at 50 $\degree$ C.Which of the following statements is correct?

• A)The rate of the reaction at 50 \(\degree\)C will be lower than the rate at 25 \(\degree\)C, since the molecules will be moving too fast to collide effectively.
• B)The rate of the reaction at 50 \(\degree\)C will be twice that of the rate at 25 \(\degree\)C, since the temperature has doubled.
• C)The rate of the reaction at 50 \(\degree\)C will be greater than the rate at 25 \(\degree\)C, since the activation energy will be lower at the higher temperature.
• D)The rate of the reaction at 50 \(\degree\)C will be greater than the rate at 25 \(\degree\)C, since a greater fraction of the molecules will possess sufficient energy to react at the higher temperature.
• E)None of these statements is correct.

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Definitions:

Sample Size

The number of observations or data points collected in a statistical study, which influences the precision and reliability of the study's outcome.

Confidence Intervals

An array of values, based on statistics from a sample, which is assumed to enclose the value of an unidentified population feature.

Population Mean

The average value of a characteristic in a population, calculated by summing all the data points and dividing by the number of data points.

Sample Means

The average value of a set of data samples from a population.