Final answer:
The temperature of the water used to mix a gypsum product affects its setting time; warmer water leads to a faster setting reaction.
Step-by-step explanation:
When mixing a gypsum product, the warmer the water, the faster the set. Gypsum products, often used in dental applications for making impressions and casts, are influenced by the temperature of the water used in the mixing process. The chemical reaction that occurs during the setting process is exothermic, meaning it releases heat. Using warmer water accelerates this reaction, leading to a quicker set. Conversely, cooler water will slow down the reaction, resulting in a slower set. It is crucial for professionals working with gypsum to be mindful of water temperature to control the setting time effectively.