A Certain First Order Reaction Has a Half Life of 20.5

question 19

Multiple Choice

A certain first order reaction has a half life of 20.5 minutes. What is the value of the rate constant in s^-1.

• A) 3.38×10^-2
• B) 5.64×10^-4
• C) 1.47×10^-2
• D) 3.38×10^-4

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Definitions:

Incremental Profit

The additional profit derived from making changes to the business operations, such as increasing production or sales.

Cash Payback Period

The duration of time it takes for an investment to generate enough cash flow to recover its initial cost.

Net Income

The total earnings of a company after all expenses and taxes have been deducted from revenues, indicating profitability.

Straight-Line Rate

A method of calculating depreciation by dividing the difference between an asset's cost and its salvage value by the number of years it is expected to be used.