Kelvin (K) – The Absolute Temperature Scale

The Kelvin scale is the absolute thermodynamic temperature scale, used primarily in scientific and engineering applications. It starts at absolute zero (0 K), the point at which all molecular motion ceases.

History of the Kelvin Scale

The Kelvin scale was developed in 1848 by Lord Kelvin (William Thomson). He proposed an absolute temperature scale where absolute zero (-273.15°C) represents the lowest possible temperature.

Usage and Applications

  • Physics and Chemistry:Used in gas laws and thermodynamic calculations.
  • Astronomy:Measuring temperatures of stars and celestial bodies.
  • Scientific Research:Essential for precision temperature measurements.

Conversion Formulas

  • To Celsius: K - 273.15
  • To Fahrenheit: (K - 273.15) × 9/5 + 32
  • To Rankine: K × 9/5
  • To Réaumur: (K - 273.15) × 4/5