---

Unit to Measure Temperatures
Temperature is a measure of the average kinetic energy of the particles in a substance. It is an important physical quantity that helps us understand the thermal state of a system. The unit used to measure temperatures is the degree Celsius (°C) or Kelvin (K).

Degree Celsius (°C)
The degree Celsius is a widely used unit for measuring temperatures in everyday life. It is based on the Celsius scale, where 0°C is the freezing point of water and 100°C is the boiling point of water at standard atmospheric pressure. The Celsius scale is commonly used in weather forecasts, cooking, and other daily activities.

Kelvin (K)
The Kelvin scale is an absolute temperature scale that is based on the theoretical concept of absolute zero, the point at which all molecular motion ceases. The Kelvin scale is commonly used in scientific research and engineering applications where precise temperature measurements are required. In the Kelvin scale, 0K is absolute zero, which is equivalent to -273.15°C.

Conversion between Celsius and Kelvin
The relationship between Celsius and Kelvin is simple: 1°C is equivalent to 1 Kelvin. This means that the size of one degree Celsius is the same as one Kelvin. To convert from Celsius to Kelvin, you simply add 273.15 to the Celsius temperature. For example, 0°C is equal to 273.15K.
In conclusion, the unit of temperature measurement is crucial in various fields such as physics, chemistry, engineering, and everyday life. Understanding the Celsius and Kelvin scales and their conversions is essential for accurate temperature measurements and calculations.