Question

At 298 K, for the reaction 2 H(aq) + 2 Br-(aq) + 2 NO2(g) ⇌ Br2(l) + 2 HNO2(aq), given the standard molar entropies, what is the overall enthalpy change?
a) -61.6 kJ/mol
b) 61.6 kJ/mol
c) -123.2 kJ/mol
d) 123.2 kJ/mol