What defines hot water?

Hot water is generally defined as water that is warm enough to serve a variety of purposes, including domestic use for bathing, cleaning, and cooking. The correct choice indicates a temperature range that aligns with common practical standards for what is considered hot water.

In many contexts, particularly residential and commercial plumbing, hot water is typically maintained at temperatures that can be comfortably used for personal hygiene or cooking without causing burns. The temperature range provided here, between 85°F and 110°F, is consistent with health and safety standards for water usage. At this temperature, water can effectively serve its intended purposes while minimizing risks associated with scalding.

Alternatives to this range, such as lower temperature values, would not meet the functional requirements of hot water for a lot of practical applications. Water below 85°F is generally categorized as lukewarm or cool rather than hot. Furthermore, temperatures above 110°F can increase the risk of burns, hence the selected range prioritizes both utility and safety.