A Reaction Is First Order in A

question 119

Multiple Choice

A reaction is first order in A. If the rate constant of the reaction is 3.45 *10^-3 s^-1, what is the half-life (t_1/2) of the reaction?

• A) 4.98 *10^-3 s
• B) 200 s
• C) 3.45 *10^-3 s
• D) 100 s
• E) 1.73 *10^-3 s

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Definitions:

Contribution Margin Ratio

A financial metric that shows the percentage of sales revenue that exceeds variable costs, indicating how much revenue contributes to fixed costs and profit.

Break-Even Point

The point where total costs and total revenues are equal, leading to no profit or loss from production or sales.

Fixed Costs

Costs such as rent, salaries, and insurance are invariant, unaffected by the quantity of production or sales.

Cost Volume Profit Analysis

A financial analysis method used to determine how changes in costs and volume affect a company's operating income and net income.