19 110
100
90
80
70
60 total volume of gas in syringe in cm3 50
40
30
20
10
0
Š OCR 2013
0
10
20
30 time in seconds
40
50
60
Turn over
19 110
100
90
80
70
60 total volume of gas in syringe in cm3 50
40
30
20
10
0
Š OCR 2013
0
10
20
30 time in seconds
40
50
60
Turn over