In: Chemistry
The reaction A → B + C is known to be first order in A. Below are data showing the concentration of A as a function of reaction time.
Time, h | [A], M |
0.5 | 5.00 x 10-2 |
1 | 4.51 x 10-2 |
2 | 4.06 x 10-2 |
3 | 3.30 x 10-2 |
4 | 2.18 x 10-2 |
5 | 1.77 x 10-2 |
6 | 1.44 x 10-2 |
(a) What is the average rate of reaction between 0.5 and 2 h? Report the units as well as the numbers.
(b) Plot the data above, showing the concentration of A as a function of the time. From your graph, determine the instantaneous rate of reaction at 4 h. Report the units as well as the numbers.
(c) Plot ln [A] versus time. Estimate the rate constant for this first-order reaction from your graph. Report the units as well as the numbers.