The triple points of neon and carbon dioxide are 24.57 K and 216.55 K respectively. Express these temperatures on the Celsius and Fahrenheit scales. | Learn NCERT solution | Education portal Class 11 Physics | Study online Unit-11 Thermal Properties of Matter



Q.1:- The triple points of neon and carbon dioxide are 24.57 K and 216.55 K respectively. Express these temperatures on the Celsius and Fahrenheit scales.

 

 

Answer:-

Kelvin and Celsius
scales are related as:
TCTK – 273.15 … (i)
Celsius and Fahrenheit scales are related as:
TF = (9/5)TC + 32   ….(ii)

For neon:
TK = 24.57 K
T= 24.57 – 273.15 = –248.58°C
TF = (9/5)TC + 32
= (9/5) × (-248.58) +32
= 415.440 F



For carbon dioxide:
TK = 216.55 K
TC= 216.55 – 273.15 = –56.60°C
TF = (9/5)TC + 32
= (9/5) × (-56.60) +32
= -69.880 C