What is the volume expansion of water when converted into steam at 212°F?

When water is converted into steam at 212°F, it undergoes a significant increase in volume due to the phase change from liquid to gas. The correct answer states that the expansion is approximately 1,700 times its original volume. This dramatic increase occurs because, in the steam phase, water molecules are much farther apart compared to the liquid state, minimizing the attractive forces between them.

This expansion is a result of the property known as vaporization or boiling, where the liquid water transitions into steam, allowing it to fill a much larger space. When water reaches its boiling point of 212°F, the heat energy added to the water causes the liquid to turn into gas, resulting in substantial volume expansion.

Understanding this concept is essential for firefighting operations, particularly in scenarios involving steam production from water during fire suppression efforts. When water is applied to hot surfaces, it can convert rapidly to steam, potentially increasing pressure within confined spaces, which firefighters need to manage effectively to avoid hazards.