ICSE Class 10 Answered
What are the favourable conditions for the conversion of SO2 to SO3?
Asked by Topperlearning User | 21 Apr, 2016, 09:10: AM
Expert Answer
Favourable conditions for the conversion of SO2 to SO3 are as follows:
- Exothermic reactions are favoured at low temperature, and the yield is maximum at about 410–450°C.
- Pressure of about 1–2 atmosphere is used.
- Excess of oxygen increases the production of sulphur dioxide.
- Platinum is more efficient, but vanadium pentoxide is used because platinum is expensive and is easily poisoned by impurities such as arsenic oxide.
Answered by | 21 Apr, 2016, 11:10: AM
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