The volume of hydrogen produced from hydrochloric acid was measured at selected intervals until two successive readings agreed. The reading recorded by one student were as follows:

Time(s) : 5 10 15 20 25 30 40 60 100 150
Volume: 30 50 65 75 83 89 94 100 101 101
of the
collected
(cm³)

Determine the rate of reaction ​