normaalmärgumispunkt

Normaalmärgumispunkt, meaning normal boiling point in Estonian, refers to the temperature at which a liquid boils when the surrounding atmospheric pressure is equal to standard atmospheric pressure, which is defined as 1 atmosphere (atm) or 101.325 kilopascals (kPa). At this specific pressure, the vapor pressure of the liquid equals the ambient pressure, allowing it to transition into a gaseous state.

The normal boiling point is a characteristic physical property of a pure substance. For example, the normal boiling point of water is 100 degrees Celsius (212 degrees Fahrenheit). This value is commonly used for identification and comparison purposes. However, it is crucial to note that the boiling point of a liquid is dependent on the pressure. If the external pressure changes, the boiling point will also change. For instance, at higher altitudes where atmospheric pressure is lower, water will boil at a temperature below 100 degrees Celsius. Conversely, under increased pressure, the boiling point will be higher. Therefore, specifying "normal" boiling point implies the standard atmospheric pressure condition. This concept is fundamental in chemistry and physics for understanding phase transitions and material properties.