Temperature Scales and Conversions

The Kelvin Scale

The Kelvin scale is an absolute thermodynamic temperature scale where zero represents absolute zero, the theoretical absence of all thermal energy. It's widely used in scientific applications due to its absolute nature. A single unit of Kelvin (K) is equal in size to one degree Celsius (°C).

The Celsius Scale

The Celsius scale, also known as the centigrade scale, is a widely used temperature scale based on the freezing and boiling points of water, defined as 0 °C and 100 °C respectively, at standard atmospheric pressure.

Conversion Between Kelvin and Celsius

Formula

The conversion between Kelvin (K) and Celsius (°C) is straightforward. To convert from Kelvin to Celsius, subtract 273.15 from the Kelvin value. The formula is represented as:

°C = K - 273.15

Example

To convert 300 Kelvin to Celsius: 300 K - 273.15 = 26.85 °C

Reverse Conversion

To convert from Celsius to Kelvin, add 273.15 to the Celsius value. The formula is:

K = °C + 273.15

Significance of Absolute Zero

Absolute zero (0 K or -273.15 °C) represents the theoretical point at which all molecular motion ceases. It is an important concept in thermodynamics and various scientific fields.