write the boiling point and freezing point of water in kelvin
The correct answer and explanation is:
The boiling point of water in Kelvin is 373.15 K, and the freezing point of water in Kelvin is 273.15 K.
Explanation:
The Kelvin scale is an absolute temperature scale, where zero Kelvin (0 K) is considered absolute zero, the lowest possible temperature where molecular motion stops. To convert Celsius to Kelvin, 273.15 is added to the Celsius temperature. This is because 0°C is equivalent to 273.15 K.
Water’s freezing point in Celsius is 0°C. To convert this to Kelvin, you add 273.15, which gives a freezing point of 273.15 K. This is the temperature at which water changes from a liquid to a solid under standard pressure.
The boiling point of water in Celsius is 100°C, which is the temperature at which water transitions from liquid to vapor (steam) at 1 atmosphere of pressure. When you convert this to Kelvin, you add 273.15 to 100°C, resulting in a boiling point of 373.15 K.
Both of these temperatures are important in scientific experiments, especially in thermodynamics and physical chemistry, because the Kelvin scale avoids the negative values seen on other temperature scales like Celsius and Fahrenheit. This makes it particularly useful in equations and calculations related to energy, heat, and thermodynamic properties, where absolute temperatures are required.
In summary:
- Freezing point of water = 273.15 K
- Boiling point of water = 373.15 K
These values are fundamental and serve as reference points in various scientific disciplines.