Let us learn about scale of temperature
A reference scale with respect to which the temperatures can be measured is known as 'scale of temperature'. Various scales of temperatures are in use. Important scales of temperature are:
- Celsius scale
- Fahrenheit scale
- Kelvin Scale
Lower and upper fixed point of temperature
To devise a scale of temperature, fixed reference points (temperature) are required, with respect to which all other temperatures are measured. For both Celsius and Fahrenheit Scales of temperatures, the fixed points are as follows:
Lower fixed point:
Melting point of pure ice at normal atmospheric pressure is regarded as the lower fixed point.
Upper fixed point
Boiling point of pure water at normal atmospheric pressure is regarded as the lower fixed point.
Celsius Scale of Temperature
Fahrenheit Scale of Temperature
This scale of temperature was devised by Gabriel Fahrenheit (1687-1736). The lower and upper fixed points in this scale are considered as 320F and 2120F respectively. The interval of 1800 F is divided into 180 equal parts. Each part is known as 10F. This is widely used by doctors.
No comments:
Post a Comment