Question

Explain Celsius and fahrenheit scale of temperature. Give relation between the two scales with the help of the graph.

Answer 1

1. Celsius scale:

• The ice point (melting point of pure ice) is marked as 0 °C (lower point) and steam point (boiling point of water) is marked as 100 °C (higher point).
• Both are taken at one atmospheric pressure.
• The interval between these points is divided into loo equal pans. Each of these parts is called as one degree celsius and it is written as 1 oc.

2. Fahrenheit scale:

• The ice point (melting point of pure ice) is marked as 32 °F and steam point (boiling point of water) is marked as 212 °F.
• The interval between these two reference points is divided into 180 equal parts. Each part is called as degree fahrenheit and is written as 1 °F.

3. Relation between fahrenheit temperature and celsius temperature:

\(\frac{T_F-32}{180}=\frac{T_C-0}{100}\)

Where, T_F = temperature in fahrenheit scales.

T_C = temperature in celsius scale.

The graph of T_F versus T_C is as shown