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Question: Answered & Verified by Expert
The oxidation of SO2 to SO3 is an exothermic reaction. The yield of SO3 will be maximum if:
ChemistryChemical EquilibriumJEE Main
Options:
  • A Temperature is increased and pressure is kept constant
  • B Temperature is reduced and pressure is increased
  • C Both temperature and pressure are increased
  • D Both temperature and pressure are reduced
Solution:
1690 Upvotes Verified Answer
The correct answer is: Temperature is reduced and pressure is increased
SO 2 + 1 2 O 2 SO 3 ; Δ H = - ve ;

Apply Le Chatelier principle.

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