What is Kelvin?

Kelvin (reported with lowercase k) is the measurement of thermal energy or temperature that progresses in the same increments, as well as Celsius. Its basic difference is that Kelvin's measurement written as K has a much lower starting point: 0K or 0 Kelvin (note the absence of the symbol of degree °). This temperature, measured as -273,15 ° C, is a point in which there is no thermal energy in the substance and is called absolute zero. If you want to determine the temperature based on Kelvins from the Celsius temperature, you only need to add 273.15 to the Celsius number.

engineer, physicist and mathematician, William Thomson, developed the concept of Kelvin in the 19th century. Later, Baron Kelvin was named after the Kelvina river located near Glasgow University, where it developed a temperature scale. Its desire to create this measurement was to provide a simple way to measure absolute values, especially the absolute zero in a simpler way than the Celsius scale.

has another mention that Kelvins is measured by degrees. They were considered until 1968, when the 13th General Conference on Weights and Measures was determined to cancel the link to the title. This decision was made because Thomson's measurements concerned absolute and specific temperature (unless there is thermal energy). On the contrary, Celsius uses a point of reference to freeze water at the bottom of the scale, and this does not exceed exactly from the thermal energy that remained in the water at this point (273,15 hp). Instead, these temperature units are considered Kelvins. When you measure something from Celsius, such as a boiling point of water, you measure in stages (approximately 100 ° C). The point of boiling of water on Thomson's scale is approximately 373 Kelvins or written as 373 K.

There are some important markings for Thomson's scale. Absolute zero is 0 K and the triple point of water, where water can exist as gas, liquid and solid is 273.16 K (0.01 ° C or 32.018 ° F). Melting pointIce, 0 ° C or 32 ° F, is 273.15 K boiling point, approximately 100 ° C or 212 ° F, is exactly 373.1339 K.

The scientific community often uses Kelvin and Celsius measurements interchangeably or at the same time. You can see temperature data due to C measurement and Kelvin measurement. This is especially the case in discussing units of thermal energy between the ice point and absolute zero.