The Kinetics of a Reaction Is Studied at 25ºC and at 50ºC

question 107

Multiple Choice

The kinetics of a reaction is studied at 25ºC and at 50ºC. Which of the following statements is correct?

• A)The rate of the reaction at 50ºC will be lower than the rate at 25ºC, since the molecules will be moving too fast to collide effectively.
• B)The rate of the reaction at 50ºC will be twice that of the rate at 25ºC, since the temperature has doubled.
• C)The rate of the reaction at 50ºC will be greater than the rate at 25ºC, since the activation energy will be lower at the higher temperature.
• D)The rate of the reaction at 50ºC will be greater than the rate at 25ºC, 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:

P-value

A measure in statistics that helps you determine the significance of your results, indicating the probability of observing your data or something more extreme if the null hypothesis is true.

P-value

The probability of finding the observed, or more extreme, results when the null hypothesis of a study question is true.

Null Hypothesis

A hypothesis used in statistical testing that assumes there is no significant difference or effect, serving as the premise to be tested against the alternative hypothesis.

Null Hypothesis

A statement used in hypothesis testing that assumes there is no significant difference or effect and that any observation is due to chance.