A-LevelChemistryChemical energeticsOct/Nov 2012Paper 1 Q41 Mark
Use of the Data Booklet is relevant to this question. A reaction which causes the presence of oxides of nitrogen in car exhausts is the formation of NO. N2 + O2 → 2NO ΔΗ = +180 kJ mol-1 What is the bond energy in kJ mol¯¹ of the bond between the atoms in NO?
A655
B835
C1310
D1670
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The correct answer is A. This question tests the candidate's understanding of chemical energetics within the Chemistrysyllabus. The examiner's mark scheme requires...
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