May/June 2026 Paper 22

2026 · 40 questions · 40 parts · 40 marks

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14Enthalpy Cycles Bond EnthalpiesMedium1 mark
Nitrogen trifluoride, NF, is used in the manufacture of certain types of solar panels. The equation for the formation of nitrogen trifluoride is shown.
type of bondbond energy in kJ / mol
NN
F–F
N–F
Using the table of bond energies, what is the energy change for this reaction?