A Reaction Is Experimentally Found to Follow the Rate Law

question 124

Multiple Choice

A reaction is experimentally found to follow the rate law, Rate = k[A]² where k = 0.355 M^-1min^-1. Starting with [A]_o = 1.55 M, how many seconds will it take for [A]_t = 0.150M

• A) 6.58 s
• B) 395 s
• C) 6.02 s
• D) 17.0 s
• E) 1.02 x 10³ s

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Definitions:

Curve

A graphical representation of the relationship between two or more variables in a coordinate system, often used in economics to illustrate supply and demand.

Shutdown Point

The level of operation at which a company does not benefit from continuing operations and may decide to temporary halt production—it's where marginal cost equals average variable cost.

Lowest Price

The minimum amount at which a product or service is sold, often determined by costs, competition, and market demand.

Long Run

A period in which all factors of production and costs are variable, allowing full adjustment to changes.