Burette Volume Elapsed Time (sec) Change in Volume Change in Time Average Outflow Rate (ml/min)
50 0
45 57 5 57 5.3
40 122 5 65 4.6
35 193 5 71 4.2
30 270 5 77 3.9
25 355 5 85 3.5
Burette Volume Average Outflow Rate (ml/min)
47.5 5.3
42.5 4.6
37.5 4.2
32.5 3.9
27.5 3.5