A cold pack uses NH₄NO₃ dissolution. The dissolution is
- A
Exothermic
- B
Athermal
- C
Spontaneous because exothermic
- Dcheck_circle
Endothermic
Explanation
Cold pack absorbs heat from surroundings; endothermic but spontaneous due to ΔS > 0.
Endothermic and Exothermic Processes
AP Chemistry· difficulty 3/5
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