?The salt ammonium nitrate can follow three modes of decomposition: (a) to

Chapter 18, Problem 108

(choose chapter or problem)

The salt ammonium nitrate can follow three modes of decomposition: (a) to \(\mathrm{HNO}_{3}(g)\) and  \(\mathrm{NH}_{3}(g)\), (b) to \(\mathrm{N}_{2} \mathrm{O}(g)\) and \(\mathrm{H}_{2} \mathrm{O}(g)\), and (c) to \(\mathrm{N}_{2}(g), \mathrm{O}_{2}(g), \text { and } \mathrm{H}_{2} \mathrm{O}(g)\). Calculate \(\Delta G_{\mathrm{rxn}}^{\circ}\) for each mode of decomposition at 298 K. Explain in light of these results how it is still possible to use ammonium nitrate as a fertilizer and the precautions that should be taken when it is used.

Text Transcription:

HNO_3(g)

NH_3(g)

N_2O(g)

H_2O(g)

N_2(g)

O_2(g)

H_2O(g)

Delta G_^circ rxn