Question

The half-lives of both zero-order and second-order reactions depend on the initial concentration, as well as on the rate constant. In one case, the half-life gets longer as the initial concentration increases, and in the other it gets shorter. Which is which, and why isn't the situation the same for both?

Name: The half-lives of both zero-order and second-order reactions depend on the initial concentration, as well as on the rate constant. In one case, the half-life gets longer as the initial concentration increases, and in the other it gets shorter. Which is which, and why isn't the situation the same for both?
Uploaded: 2020-06-08T19:50:34-08:00
Duration: 1 min 36 s
Channel: Benjamin Angeles
Description: The half-lives of both zero-order and second-order reactions depend on the initial concentration, as well as on the rate constant. In one case, the half-life gets longer as the initial concentration increases, and in the other it gets shorter. Which is which, and why isn't the situation the same for both?

          The half-lives of both zero-order and second-order reactions depend on the initial concentration, as well as on the rate constant. In one case, the half-life gets longer as the initial concentration increases, and in the other it gets shorter. Which is which, and why isn't the situation the same for both?

Added by Amy D.

Organic Chemistry

Janice Gorzynski Smith 4th Edition

Instant Answer

Solved by Expert Benjamin Angeles

06/08/2020

Step 1

This is because the rate of the reaction is directly proportional to the square of the concentration of reactants. As the initial concentration increases, the rate of reaction also increases, leading to a longer time required for half of the reactants to be Show more…

Show all steps

Thanks for your feedback!

The half-lives of both zero-order and second-order reactions depend on the initial concentration, as well as on the rate constant. In one case, the half-life gets longer as the initial concentration increases, and in the other it gets shorter. Which is which, and why isn't the situation the same for both?