The molar heat of formation of NH4NO3 (s) is –367.54 kJ and those of N20 (g) and H2O (1) are 81.46 and –285.8 kJ respectively at 25 °C and 1 atmospheric pressure. Calculate AH, AS, and change in free energy of the reaction. - NHẠNO3(s) → N209) + H201)

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