In the reaction, represented by, 2SO2 + O2 ⇌ 2SO3; ΔH = - 42 kcal; the forward reaction will be favoured by____________________?
Correct answer: B. Both A. and B
- A. Low temperature
- B. Both A. and B
- C. High pressure
- D. Neither A. nor B
Explanation
The forward reaction is exothermic, so lowering temperature favours SO3 formation. It also reduces gas moles from three to two, so high pressure favours the forward direction by Le Chatelier’s principle.
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