A-LevelChemistryEquilibriaOct/Nov 2015Paper 1 Q91 Mark
Nitrogen monoxide reacts with oxygen in a reversible reaction according to the equation shown below. 2NO(g) + O2(g) ⇌ 2NO2(g) The partial pressures of each of the components in an equilibrium mixture are shown in the table. partial pressure NO/kPa: 10, partial pressure O2/kPa: 30, partial pressure NO2/kPa: 20 What is the numerical value of the equilibrium constant, Kp, for this equilibrium?
A6.67 x 10-2
B1.33 x 10-1
C7.50
D15.0
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The correct answer is B. This question tests the candidate's understanding of equilibria within the Chemistrysyllabus. The examiner's mark scheme requires...
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