An industrial chemist investigated the performance of a proton exchange membrane (PEM) electrolyser. During the electrolysis of water, hydrogen gas was collected at the cathode and oxygen gas was collected at the anode. The volumes of both gases were recorded every 4 minutes.

Table 1

Time (minutes)	Volume of hydrogen ( $cm^3$ )	Volume of oxygen ( $cm^3$ )
0	0.0	0.0
4	6.0	3.0
8	12.0	6.0
12	18.0	9.0
16	24.0	12.0

Describe, using the data in Table 1, what the results show about the volumes of hydrogen and oxygen produced during this electrolysis experiment.

Table 1

Time (minutes)	Volume of hydrogen ( $cm^3$ )	Volume of oxygen ( $cm^3$ )
0	0.0	0.0
4	6.0	3.0
8	12.0	6.0
12	18.0	9.0
16	24.0	12.0

Describe, using the data in Table 1, what the results show about the volumes of hydrogen and oxygen produced during this electrolysis experiment.

4.2 Electrolytic processes

Question 62

Table 1

Markscheme

4.2 Electrolytic processes

Question 62

Table 1

Markscheme

4.2 Electrolytic processes

Question 62

Table 1

4.2 Electrolytic processes Questions

4.2 Electrolytic processes

Question 62

Table 1

4.2 Electrolytic processes Questions