केल्भिन

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यसमा जानुहोस्: परिचालन, खोज्नुहोस्
केल्भिन तापक्रम परिवर्तन सुत्र
Conversion from to सुत्र
केल्भिन डिग्री सेल्सियस °से = के - २७३.१५
डिग्री सेल्सियस केल्भिन के = °से + २७३.१५
केल्भिन डिग्री फरेनहाइट °फ = के × १.८ − ४५९.६७
डिग्री फरेनहाइट केल्भिन के = (°फ + ४५९.६७) / १.८
Note that for temperature intervals rather than temperature readings,
1 K = 1 °C and 1 K = 1.8 °F
Additional conversion formulas
Conversion calculator for units of temperature

केल्भिन (अङ्ग्रेजीमा kelvin, symbol: K) तापक्रम नाप्ने एस्.आई. ईकाई हो, र सात एस्.आई. आधार ईकाई मध्येको एक हो। यसलाई दुई तथ्यले ब्याख्या गर्दछ: शुन्य केल्भिन is absolute zero (when molecular motion stops), and one kelvin is the fraction १/२७३.१६ of the thermodynamic temperature of the triple point of water. The Celsius temperature scale is now defined in terms of the kelvin, with ० °C corresponding to २७३.१५ kelvins, approximately the melting point of water under ordinary conditions.

The kelvin is named after the British physicist and engineer William Thomson, 1st Baron Kelvin; उनका barony was in turn named after the River Kelvin, which runs through the grounds of the University of Glasgow.

Typographical conventions[सम्पादन गर्ने]

The word kelvin as an SI unit is correctly written with a lowercase k (unless at the beginning of a sentence), and is never preceded by the words degree or degrees, or the symbol °, unlike degrees Fahrenheit, or degrees Celsius. This is because the latter are adjectives, whereas kelvin is a noun. It takes the normal plural form by adding an s in English: kelvins. When the kelvin was introduced in 1954 (१०th General Conference on Weights and Measures (CGPM), Resolution ३, CR ७९), it was the "degree Kelvin", and written °K; the "degree" was dropped in 1967 (१३th CGPM, Resolution ३, CR १०४).

Note that the symbol for the kelvin unit is always a capital K and never italicised. There is a space between the number and the K, as with all other SI units.

Unicode includes the "kelvin sign" at U+२१२A (in your browser it looks like K). However, the "kelvin sign" is canonically decomposed into U+००४B, thereby seen as a (preexisting) encoding mistake, and it is better to use U+००४B (K) directly.

Conversion factors[सम्पादन गर्ने]

Kelvins and Celsius[सम्पादन गर्ने]

The Celsius temperature scale is now defined in terms of the kelvin, with ० °C corresponding to २७३.१५ kelvins.

  • kelvins to degrees Celsius
    
\mathrm{C} = \mathrm{K} - 273.15

Temperature and energy[सम्पादन गर्ने]

In a thermodynamic system, the energy carried by the particles is proportional to the absolute temperature, where the constant of proportionality is the Boltzmann constant. As a result, it is possible to determine the temperature of particles with a certain energy; or to calculate the energy of particles at a certain temperature:


\mathrm{K} = \mathrm{eV} \times 11,\!605
  • kelvins to electron volts

\mathrm{eV} = \frac{\mathrm{K}}{11,\!605}

See also[सम्पादन गर्ने]

  • ITS-90 International Temperature Scale

External link[सम्पादन गर्ने]