Question: In this practical, the aqueous ozone is produced using a portable ozone generator to achieve a level of 2 ppm. a) Explain why ozonated water

In this practical, the aqueous ozone is produced using a portable ozone generator to achieve a level of 2 ppm.

a) Explain why ozonated water must be used within 30 min after ozonation. (5 marks; word limit range: 100 - 200)

b) Discuss the likely effects on the sanitisation of the product if gaseous ozone is used instead of aqueous ozone. Note that the concentration of gaseous ozone can reach up to 20,000 ppm. (5 marks; word limit range: 150 - 200)

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