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Ammonium nitrate (80.04 g/mol)decomposes at high temperatures to form nitrogen,oxygen,and water vapor.Suppose 750 grams decomposes at 350°C and 0.98 atm,generating gases that expand by about 960 L.How much P-V work is done? What is the approximate change in internal energy ( E )of the reaction system? (1 L . atm = 101.3 J)
NH4NO3(s) N2(g)+ O2(g)+ H2O(g) H =-118 kJ/mol
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