At a Particular Temperature, N₂O₅ Decomposes According to a First-Order

question 73

Multiple Choice

At a particular temperature, N₂O₅ decomposes according to a first-order rate law with a half-life of 3.0 s. If the initial concentration of N₂O₅ is 1.0 *10¹⁶ molecules/cm³, what will be the concentration in molecules/cm³ after 10.0 s?

• A) 6.3 * 10³
• B) 9.9 * 10¹⁴
• C) 9.4 *10²
• D) 7.3 * 10⁹
• E) 1.8 *10¹²

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Definitions:

Likelihood

A statistical term that measures the probability of a particular outcome given a set of conditions or parameters.

Three-dimensional

Having or appearing to have length, breadth, and depth; often used to describe objects or images that have a perception of depth.

Fixation

An obsessive focus or attachment to someone or something, potentially causing psychological issues.

Arrangement

The act of organizing or placing things in a specific order or pattern.