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The degree of hotness or coolness of a body is measured by its temperature. The higher the temperature, the hotter the body.
Kelvin is the SI unit of temperature (\(K\)). Celsius (\(°C\)) is used in everyday applications. A thermometer is used to determine the temperature.
There are three temperature scales, they are
- Fahrenheit scale
- Celsius or Centigrade scale
- Absolute scale or Kelvin scale
Fahrenheit scale:
The freezing and boiling points in Fahrenheit are \(32\) degrees Fahrenheit and \(212\) degrees Fahrenheit, respectively. The interval has been broken down into \(180\) segments.
Celsius scale:
The freezing and boiling points on the Celsius scale (also known as the centigrade scale) are \(0°C\) and \(100°C\), respectively. The interval has been broken down into \(100\) pieces.
The formula to convert a Celsius scale to Fahrenheit scale is:
The formula for converting a Fahrenheit scale to Celsius scale is:
Kelvin scale(Absolute scale):
Kelvin scale is also known as the absolute scale. Absolute zero, or \(0\) \(K\) on the Kelvin scale, is the temperature at which a substance's molecules have the lowest possible energy. At \(273.16\) \(K\), the solid, liquid, and gaseous phases of water can coexist in equilibrium.
Kelvin is defined as \(1/273.16\) of the triple point temperature.
The formula for converting a Celsius scale to a Kelvin scale is:
Temperature scales
Reference:
https://commons.wikimedia.org/wiki/File:Temperature_Scales.png
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