A-LevelChemistryEquilibriaMay/June 2016Paper 1 Q101 Mark
When solid ammonium chloride dissociates at a certain temperature in a 0.500 dm³ container, ammonia and hydrogen chloride are formed. NH₄Cl(s) ⇌ NH₃(g) + HCl(g) The initial amount of ammonium chloride was 1.00 mol, and when the system had reached equilibrium there was 0.300 mol of ammonium chloride. What is the numerical value of Kp for this reaction under these conditions?
A0.490
B1.63
C1.96
D3.27
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The correct answer is C. This question tests the candidate's understanding of equilibria within the Chemistrysyllabus. The examiner's mark scheme requires...
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