Arrhenius Proposed the Equation Shown Below That Relates the Rate

question 118

Multiple Choice

Arrhenius proposed the equation shown below that relates the rate constant, k , to the energy of activation, E_a, and the absolute temperature given in Kelvin degrees. k = Ae^{( - Ea/RT)} Which statement below is best regarding how the rate constant is related to E_a and the temperature?

• A) The rate constant is largest at relatively higher temperatures and when the reaction has an inherently high energy of activation.
• B) The rate constant is largest at relatively lower temperatures and when the reaction has an inherently small energy of activation.
• C) The rate constant is largest at relatively lower temperatures and when the reaction has an inherently high energy of activation.
• D) The rate constant is largest at relatively higher temperatures and when the reaction has an inherently small energy of activation.
• E) The rate constant is a constant and does not vary with the temperature or the energy of activation.

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Definitions:

Common Cause Variation

Variation that is inherent in a process over time, caused by factors that are consistently and predictably present.

Control Charts

Visual tools used in statistical process control to monitor how a process changes over time, highlighting variations outside of predefined bounds.

Special Cause Variation

A type of variation in a process, identified as being caused by specific identifiable factors, unlike common cause variation which is inherent to the process.

Special Cause Variation

Variation in a process that is caused by specific, identifiable sources, unlike random variation, which is inherent in the process.