A-LevelChemistryEquilibriaOct/Nov 2013Paper 1 Q341 Mark
If N2O4 gas is placed in a sealed vessel the following equilibrium is established. N2O4(g) ⇌ 2NO2(g) The forward reaction is endothermic. What happens when the temperature is increased? 1. The equilibrium constant increases. 2. The partial pressure of NO2 increases. 3. The activation energy is unchanged.
A1, 2 and 3 are correct
B1 and 2 only are correct
C2 and 3 only are correct
D1 only is correct
✓ Correct Answer
The correct answer is A. This question tests the candidate's understanding of equilibria within the Chemistrysyllabus. The examiner's mark scheme requires...
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Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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