In a First Order Reaction, the Initial Concentration of a Is

question 32

Multiple Choice

In a first order reaction, the initial concentration of A is 0.40 M. What is the concentration of A after 15 seconds if the half-life of the reaction is 3 seconds?

• A)8.0  10 ^{ 2} M
• B)2.0 M
• C)5.0  10 ^{ 2} M
• D)2.5  10 ^{ 2} M
• E)1.3  10 ^{ 2} M

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Definitions:

Monopolistically Competitive

A market structure in which many firms sell products or services that are similar but not identical, allowing for competition on factors other than price.

Long Run

A period in which all factors of production and costs are variable, allowing for adjustments in production processes.

Industry Profits

The total earnings of companies within a particular industry, after subtracting all costs from total revenue.

Economically Break Even

The point where total revenues equal total costs, resulting in zero economic profit.