CH-1259
Exothermic and endothermic reactions
Chemistry · Secondary 4 · Medium · Exothermic and endothermic reactions
A student dissolves 4.0 g of ammonium nitrate in 100 g of water. The temperature of the water decreases from 26.0 °C to 21.5 °C. Which statement about the process is correct?
- The process is endothermic because heat is absorbed from the water.
- The process is endothermic because heat is released to the water.
- The process is exothermic because heat is absorbed from the water.
- The process is exothermic because the solution becomes colder.
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