Exhibit 18-5 The Following Question(s) Pertain to the Scenario Below

question 30

Multiple Choice

Exhibit 18-5
The following question(s) pertain to the scenario below.
A student performed a kinetic study of the reaction:
2NO(g) + O₂(g) → 2NO₂(g)
The student prepared the four plots seen below in lab, but forgot to label the axes. A classmate later told him that the reaction was second order in NO and first order in O₂. Not wanting to get a bad grade in the class, the student sets out to label the axes on the graphs.

Refer to Exhibit 18-5. Which graph corresponds to plotting ln[O₂] vs. time?

• A) top left
• B) top right
• C) bottom left
• D) bottom right
• E) none of the above

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Definitions:

Pedal

Pertaining to or operated by the foot or feet, such as bicycle pedals or the pedals of a car.

Bicycle

A human-powered, pedal-driven vehicle with two wheels attached to a frame, one behind the other.

Variability

Variability describes the extent to which data points in a dataset differ from each other and from the average, demonstrating the spread or dispersion of the dataset.

Reaction Time

The amount of time taken to respond to a specific stimulus.