For a Particular First-Order Reaction,it Takes 24 Minutes for the Concentration

question 63

Multiple Choice

For a particular first-order reaction,it takes 24 minutes for the concentration of the reactant to decrease to 25% of its initial value.What is the rate constant (in s^-1) for the reaction?

• A)2.0 × 10^-4 s^-1
• B)9.6 × 10^-4 s^-1
• C)1.2 × 10^-2 s^-1
• D)5.8 × 10^-2 s^-1

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Definitions:

Cumulative Gain

The total amount of gain or profit accumulated over a specific period of time.

Rate of Return

The percentage of profit or loss on an investment over a specified period.

Capital Gain Yield

The rise in the price of a security, like a stock or bond, leading to a profit if sold; expressed as a percentage increase over the investment's cost.

Income Yield

The return on an investment in terms of the income generated, expressed as a percentage of the investment's cost.