Different Scales Of Temperature

➡The temperature of an object or body is measured in 4 different scales.

1. Celsius or centigrade scale

2. Fahrenheit scale

3. Kelvin scale

4. Reaumur scale

1. Celsius or centigrade scale:

➡Anders Celsius devised the scale in 1710.

➡Lower fixed point of Celsius scale is 0 degree celsius.( as Ice melts are freezes at 0 degree Celsius)

➡Upper fixed point of Celsius scale is 100 degree Celsius.( water starts boiling at 100 degree Celsius)

➡Fundamental interval is divided into 100 equal divisions all parts.

➡Each division gives a temperature of 1 Degree Celsius.

➡Each Degree on celsius scale is 1/100 part of interval between the upper fixed point and lower fixed point.

2. Fahrenheit scale:

➡Gabriel Fahrenheit devised the fahrenheit scale in 1717.

➡Lower fixed point of fahrenheit scale is 32° F.

➡Upper fixed point of fahrenheit scale is 212° F.

➡Fundamental interval in fahrenheit scale is divided into 180 equal parts or divisions.

➡Each degree on fahrenheit scale is divided into 1/ 180 th part of difference between the lower fixed point and upper fixed point.

3. Kelvin scale:

➡Lord Kelvin devised this Kelvin scale.

➡Lower fixed point of Kelvin scale is 273 K.

➡Upper fixed point of Kelvin scale is 373 K.

➡Fundamental interval in kelvin scale is divided into 100 equal parts or divisions.

➡Each degree on Kelvin scale is 1/100 part of interval between the upper fixed point and lower fixed point.

➡0 K is equal to - 273° C, which is known as absolute zero of temperature. It is the lowest temperature attained by any body.

4. Reaumur scale:

➡Reaumur devised this reaumur scale in 1730.

➡Lower fixed point of Reaumur scale is 0° R.

➡Upper  Fixed point of Reaumur scale is 80° R.

➡Fundamental interval in Reaumur  scale is divided into 80 equal parts or divisions.

➡Each degree on Reaumur scale is 1 by 80 part of lower fixed point and upper fixed point.