Question

(a) Convert the following to Celsius scale (i) 450K (ii) 300k
(b) Convert the following to Kelvin scale (i) 27° C (ii) 86°C​

Answer 1

Solution :- (a) (i) 176.85°C

(ii) 26.85°C

(b) (i) 300.15°K

(ii) 359.15°K

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Answer 2

The following conversions are as below:

Kelvin to celsius:

• °C = K − 273.15
• (i) 450K
• °C = 450 - 273.15 = 176.85°C
• (ii) 300k
• °C = 300 - 273.15 = 26.85°C

Celsius to Kelvin:

• Kelvin = Celsius + 273.15.
• (i) 27° C
• K = 27 + 273.15 = 300.15K
• (ii) 86°C​
• K = 86 + 273.15 = 359.15K

Interconversion of Temperature Scales:

• Celsius is the most widely used temperature scale in the world.
• It is abbreviated C and is nearly identical to the old centigrade scale, with 100 degrees between the melting and boiling points of water, which are assumed to occur at 0 and 100 degrees, respectively.

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