Boiling is a phase transition that occurs when a substance changes from a liquid state to a gas state, typically due to an increase in temperature and/or a decrease in pressure. While it is possible to boil water and convert it into a gas (steam), the same process cannot be applied to most metals like iron.
The reason is that metals have much higher boiling points compared to water. Iron, for example, has a boiling point of approximately 2,862 degrees Celsius (5,184 degrees Fahrenheit), which is well beyond the temperatures commonly used for everyday purposes. In practical terms, it is extremely challenging to reach and maintain such high temperatures in a controlled environment.
Instead of boiling, metals can undergo a different phase transition known as sublimation. Sublimation occurs when a substance transitions directly from a solid to a gas without passing through the liquid phase. However, for most metals, sublimation temperatures are also very high and are generally not achievable under normal conditions.
Therefore, while it is possible to boil water and convert it into a gas, boiling metals like iron is not a common or practical process due to their extremely high boiling points.