Temperature Scales

Celsius Scale

1. Ice Point = 0⁰C

2. Steam Point = 100⁰C

3. Number of division in between these points = 100

 

Fahrenheit Scale

1. Ice Point = 32⁰C

2. Steam Point = 212⁰C

3. Number of division in between these points = 180

 

Celsius–to–Fahrenheit Conversion Formula:   x ⁰C X 9/5 + 32 = ⁰F

 

Kelvin Scale

It is theoretical scale in which the value can be obtained simply by adding 273 to the Celsius scale. The zero Kelvin on the scale is called the absolute zero as most of the gases liquefy before absolute zero is reached. This is equivalent to – 273⁰ C.

 

Exercise :

Convert the following temperatures from Centigrade Scale to Fahrenheit Scale :

(i) 20⁰ C, (ii) 50⁰ C (iii) 90⁰C

Convert the following temperatures from Fahrenheit Scale to centigrade Scale :

(iv) 20⁰ F  (v) 50⁰ F  (vi) 90⁰ F

Convert the following temperatures from Centigrade Scale to Kelvin (absolute) Scale :

(vii) – 20⁰ C, (viii) 50⁰ C (ix) – 200⁰ C