Balanced reaction: 3 NO2(g) + H2O(l) → 2 HNO3(aq) + NO(g)
S° NO2(g) = 240.1 J/mol•K
S° H2O(l) = 70.0 J/mol•K
S° HNO3(aq) = 146.4 J/mol•K
S° NO(g) = 210.8 J/mol•K
Note that we need to multiply each S˚ by the stoichiometric coefficient since S° is in J/mol • K.
Calculate ΔS˚rxn for each of the reactions given below.
3 NO2(g) + H2O(l) → 2 HNO3(aq) + NO(g)
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