. In the converter of the contact process for the manufacture of H2SO4 the equilibrium conversion of SO2__________ (i) __________ with increase in temperature and __________ (ii) __________ with increase in the mole ratio of SO2 to air?
Correct answer: B. (i) decreases (ii) increases
- A. (i) increases (ii) decreases
- B. (i) decreases (ii) increases
- C. (i) increases (ii) increases
- D. (i) decreases (ii) decreases
Explanation
Oxidation of SO2 to SO3 is exothermic, so increasing temperature lowers the equilibrium conversion. Increasing the SO2-to-air ratio reduces the relative oxygen availability and also lowers SO2 conversion.
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