What is the effect of heat on water?

The correct answer is that water evaporates when heat is applied. Evaporation is the process where liquid water is converted into vapor or gas due to an increase in temperature. As heat increases, the water molecules gain energy, causing them to move faster and allowing some to break free from the liquid state and enter the atmosphere as vapor.

In a broader context, understanding the effect of heat on water is fundamental in various scientific and practical applications. For example, this principle is crucial in weather patterns, cooking processes, and even industrial applications where water is heated for steam production. By recognizing how water transitions to vapor, one can better grasp concepts in thermodynamics and environmental science.