A dissolution process is tested for temperature change. How can you determine whether it is endothermic or exothermic?

A dissolution process is tested for temperature change. How can you determine whether it is endothermic or exothermic?

• A. If the solution becomes cloudy, it is endothermic.
• B. If the solution boils, it is exothermic.
• C. If the solution temperature rises, the process is exothermic; if it falls, it is endothermic.
• D. If the temperature remains the same, it is endothermic.

Answer: (C)