O-LevelChemistryRates of Reaction5070/11 · May/June 2024 · Q141 Mark
Ammonium nitrate dissolves in water. H₂O NH₄NO₃(s) → NH₄NO₃(aq) ΔH = +25 kJ/mol Which statements are correct? 1 The process is endothermic. 2 The water gets colder during the process. 3 Thermal energy is absorbed by the ammonium nitrate from the water.
A1, 2 and 3
B1 and 2 only
C1 and 3 only
D2 and 3 only
✓ Correct answer
A: 1, 2 and 3
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