Ammonium nitrate is dissolved in water. $\text{NH}_4\text{NO}_3\text{(s)} \xrightarrow{\text{H}_2\text{O}} \text{NH}_4\text{NO}_3\text{(aq)} \quad \Delta H = +25\ \text{kJ mol}^{-1}$ Which statements are correct?
- A1, 2 and 3
- B1 and 2 only
- C1 and 3 only
- D2 and 3 only