In which of the following gaseous phase reactions, the equilibrium of the reaction remains unaffected by pressure changes ?
Correct answer: D. N2 + O2 ⇌ 2NO
- A. 2O3 ⇌ 3O2
- B. 2SO2 + O2 ⇌ 2SO3
- C. 2NO2 ⇌ N2O4
- D. N2 + O2 ⇌ 2NO
Explanation
Pressure has no effect on gas-phase equilibrium when the total gaseous mole number is unchanged. N2 + O2 ⇌ 2NO has two moles of gas on each side, unlike the other choices.
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