You are given the redox reaction below in acidic medium at 25°C. Hn = -61.6 kJ/mol, Gxn = 4.4 kJ/mol, and the standard molar entropies for the reactants and products are also provided below. Calculate the standard molar entropy for HNO in J/mol-K.
2H+(aq) + 2Br-(aq) + 2NO2(g) → Br2(l) + 2HNO3(aq)
Substance H+(aq) Br-(aq) NO2(g) Br2(l) HNO3(aq)
S(J/mol-K) 0 82.4 240.1 152.2 ?