Question

For water to go through a phase change, its temperature must be greater than or equal to 212°F or less than or equal to 32°F. If a glass of water is currently at 75° F, what temperature changes will produce a phase change?

Answer 1

To produce a phase change in water from a temperature of 75°F, you would need to either increase the temperature to above 212°F or decrease it to below 32°F.

Step-by-step explanation:

To produce a phase change in water, the temperature must be greater than or equal to 212°F or less than or equal to 32°F. Since the current temperature of the glass of water is 75°F, it is within the range where the water remains in its liquid phase. To achieve a phase change, you would need to either increase the temperature above 212°F to reach the boiling point, or decrease the temperature below 32°F to reach the freezing point.