Calculate gibbs rxn for each mode of decomposition

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Question- The salt ammonium nitrate can follow three modes of decomposition: (a) to HNO3(g) and NH3(g), (b) to N2O(g) and H2O(g), (c) to N2(g), O2(g) and H2O(g). Calculate Gibbs rxn for each mode of decomposition at 298 K. I have A) 94.0 kJ B)-169.6kJ Both are correct,

I am not able to figure out C please assists me

Reference no: EM13692101

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