A Mechanism for a Naturally Occurring Reaction That Destroys Ozone

question 89

Multiple Choice

A mechanism for a naturally occurring reaction that destroys ozone is: Step 1: O₃(g) + HO(g) → HO₂(g) + O₂(g)
Step 2: HO₂(g) + O(g) → HO(g) + O₂(g)
What is the molecularity of the overall reaction?

• A)unimolecular
• B)bimolecular
• C)none of these because molecularity is the difference of the exponents in the rate law
• D)none of these because molecularity only refers to elementary steps

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Definitions:

Sample Variance

A measure of how datapoints in a sample are spread out from their sample mean, quantifying the extent of variation within the sample.

Kurtosis

A measure of the "tailedness" of the probability distribution of a real-valued random variable; high kurtosis indicates a distribution with heavy tails and a sharp peak, while low kurtosis indicates a flatter distribution.

Histogram

This is a graphical representation of data using bars of different heights where each bar groups numbers into ranges.

Unimodal

Describing a distribution with a single peak or mode, representing the most frequently occurring value.