Asked Feb 16, 2020

What is the half life (t1/2), in units of seconds,  for a first order reaction that has a k value of 0.000175s-1 ?


Expert Answer

Step 1

In the first-order reaction, the half-life will not be influenced by the concentration of the substances.

Step 2

The expression to calculate the half-life for the first-order reaction is shown below:

Chemistry homework question answer, step 2, image 1


Step 3

The value of the rate of the reaction is 0.000175 s-1.

Substitute the value in equation (1).

Chemistry homework question answer, step 3, image 1

Therefore, the value of the half-life for the first-order reaction is 3960 s.


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