For the reaction A $\rightarrow$products,the following data were collected.
The half-life for this reaction is

Question

For the reaction A $\rightarrow$products,the following data were collected.  
The half-life for this reaction is

Quizplus · Accepted Answer

To determine the half-life, we need to use the formula:

t1/2 = 0.693/k

where k is the rate constant.

From the graph, we can see that the initial concentration of the reactant is 1.0 M and that the concentration drops to 0.5 M after about 0.752 s.

Therefore, we can calculate the rate constant:

k = ln(2)/t1/2 = ln(2)/(0.752 s) = 0.922 s^-1

Using this value of k, we can find the half-life:

t1/2 = 0.693/k = 0.693/0.922 s^-1 = 0.752 s

Therefore, the best choice is B with the explanation that the half-life is 0.752 s.

For the Reaction A →\rightarrow→ Products,the Following Data Were Collected