Keittolämpötilaa

Keittolämpötilaa refers to the boiling point of a substance. It is the temperature at which a liquid turns into a gas or vapor at a given pressure. At the boiling point, the vapor pressure of the liquid equals the surrounding atmospheric pressure. This allows bubbles of vapor to form within the liquid and rise to the surface.

The boiling point is a characteristic physical property of a substance and can be used to identify it. For example, water boils at 100 degrees Celsius (212 degrees Fahrenheit) at standard atmospheric pressure. However, the boiling point can change depending on the pressure. At higher pressures, a substance will have a higher boiling point, and at lower pressures, it will have a lower boiling point. This is why water boils at a lower temperature at high altitudes, where atmospheric pressure is lower.

Boiling points are typically measured under standard atmospheric pressure (1 atmosphere or 101.325 kilopascals). Different substances have vastly different boiling points. For instance, ethanol boils at around 78.37 degrees Celsius, while mercury boils at 356.73 degrees Celsius. Understanding keittolämpötilaa is crucial in various scientific and industrial applications, including distillation, chemical synthesis, and cooking.