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For a reaction with a rate constant of 0.1 s^-1, what is the half-life for a fir

Practice Questions

Q1

For a reaction with a rate constant of 0.1 s^-1, what is the half-life for a first-order reaction?

0.693 s
6.93 s
10 s
0.1 s

Questions & Step-by-Step Solutions

For a reaction with a rate constant of 0.1 s^-1, what is the half-life for a first-order reaction?

Step 1: Identify the formula for the half-life of a first-order reaction, which is t1/2 = 0.693/k.
Step 2: Note the given rate constant (k), which is 0.1 s^-1.
Step 3: Substitute the value of k into the formula: t1/2 = 0.693/0.1.
Step 4: Perform the division: 0.693 divided by 0.1 equals 6.93.
Step 5: Conclude that the half-life (t1/2) is 6.93 seconds.

First-Order Reaction Kinetics – Understanding the relationship between rate constants and half-life in first-order reactions.
Half-Life Calculation – Applying the formula t1/2 = 0.693/k to determine the half-life from the rate constant.

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