Chlorine Dioxide (ClO₂) Is Used as a Disinfectant in Municipal

question 73

Multiple Choice

Chlorine dioxide (ClO₂) is used as a disinfectant in municipal water-treatment plants. It decomposes in a first-order reaction with a rate constant of 0.0714 s^1. If the initial concentration were 0.12 M, what would the concentration be after 14.0 s has elapsed?

• A)0.033 M
• B)0.12 M
• C)0.060 M
• D)0.012 M
• E)0.044 M

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Definitions:

Nonrivalry

A characteristic of some goods where one person's consumption does not diminish the ability of others to consume the same good.

Nonexcludability

A characteristic of certain goods or services where it is not feasible to exclude individuals from using the good or service, regardless of whether they have paid for it.

Negative Externality

A cost experienced by a third party not involved in the economic transaction, such as pollution affecting residents near a factory.

Spillover Cost

A cost incurred by someone who did not choose to incur that cost.