Solution Found!
Solved: (a) Use the data from 16.12 to calculate the
Chapter 16, Problem 13P(choose chapter or problem)
Problem 13P
(a) Use the data from Problem 16.12 to calculate the average rate from 8.0 to 20.0 s.
(b) Is the rate at exactly 5.0 s higher or lower than the rate in part (a)? Use graphical methods to estimate the rate at 5.0 s.
Questions & Answers
QUESTION:
Problem 13P
(a) Use the data from Problem 16.12 to calculate the average rate from 8.0 to 20.0 s.
(b) Is the rate at exactly 5.0 s higher or lower than the rate in part (a)? Use graphical methods to estimate the rate at 5.0 s.
ANSWER:
Solution 13P
Step 1
(a) Here we have to use the data from Problem 16.12 to calculate the average rate from 8.0 to 20.0 s.
The average rate for the entire process is proportional to the slope of the line connecting these two points i.e AX2 at t initial (8.0 s) to AX2 at t final (20.0 s).
Rate of reaction is defined as the change in concentration of the product with time. If a reactant is used, the rate is the negative of the concentration of the reactant.
Rate can be calculated as Rate = - [AX2]/
= -(0.0088 M-0.0249 M) / (20.0 s - 8.0 s)
= 1.3410-3 M/s
Thus the average rate of reaction is found to be 1.3410-3 M/s.