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fomenos
3 years ago
5

When ammonium chloride crystals are dissolved in water, the temperature of the water decreases. What does the temperature change

indicate about the dissolving of ammonium chloride in water.
Chemistry
1 answer:
sertanlavr [38]3 years ago
3 0

Answer:

See Explanation

Explanation:

A decreasing temperature indicates that the dissolution process for the ammonium chloride requires input of energy from surroundings. That is, the process is essentially 2 parts => system (object of interest - NH₄Cl) and the surroundings (everything else - solvent - H₂O). The surroundings (water) solvent is showing a <u>measured</u> decrease in temperature or loss of energy (exothermic to surroundings) which flows into the system (NH₄Cl) and effects dissolution of salt into solution (endothermic to system).

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