Post-UTME Chemistry 2017 Objective — Question 9
Question 9 of 20 from the Post-UTME Screening (Post-UTME) Chemistry 2017 Objective paper, with the correct answer and a full explanation.
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N2O4(g) <=> 2NO2(g). A high yield of nitrogen (IV) oxide can be obtained the reaction above by
- A. increasing the temperatureCorrect
- B. lowering the temperature
- C. increasing the pressure
- D. lowering the pressure
Explanation
The dissociation of N2O4 to NO2 is endothermic, so raising the temperature shifts equilibrium towards greater NO2 (nitrogen(IV) oxide) yield.
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