Help please!i'm not sure if i'm right. Honestly i'm not that confident about most of my work.

In which of the following thermochemical equations would the deltaH be considered a heat of solution?

C6H6 (s)--> C6H6 (l), deltaH = +9.87 kJ

2C8H18(l) + 25O2 (g)-->16CO2 (g) + 18H2O (l), deltaH = 5,471 kJ/mol

2NaHCO3 (s)---> Na2CO3 (s) + H2O (g) + CO2 (g), deltaH = 129 kJ

NH4NO3 (s)--> NH4+ (aq) + NO3 (aq), deltaH = +25.7 kJ/mol<--- my answer

is it correct?

2 answers

Yes, you are correct.
The first one is heat fusion.
The second is heat of combustion.
The third is heat of decomposition.
The fourth is heat of solution.
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