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Formula from Chapter 7: Definition of bond energy
\(D_{\mathrm{\ce{X-Y}}} = ΔH_{\mathrm{bonddissociation}}\)
\(\ce{XY(g)}\)
\(\ce{->}\)
\(\ce{X(g)}\)
\(\ce{ + }\)
\(\ce{Y(g)}\)
\(\ce{ }\)
\(ΔH_{\mathrm{bonddissociation}} = 331.2\ \frac{\mathrm{kJ}}{\mathrm{mol}}\)
\(ΔH_{\mathrm{bonddissociation}}\)
\(= 331.2\ \frac{\mathrm{kJ}}{\mathrm{mol}}\)
\(D_{\mathrm{\ce{X-Y}}}\)
\(= ΔH_{\mathrm{bonddissociation}}\)
\(\ \ \ =331.2\ \frac{\mathrm{kJ}}{\mathrm{mol}}\)
\(\ \ \ =331.2\ \frac{\mathrm{kJ}}{\mathrm{mol}}\)