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Mechanical Properties Of Fluids

Question

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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.

Solution

Kelvin and Celsius scales are related as:
T_C = T_K – 273.15 … (i)

Celsius and Fahrenheit scales are related as:
T_F = (9/5)T_C + 32 ...(ii)

For neon:
T_K = 24.57 K
∴ T_C= 24.57 – 273.15 = –248.58°C
T_F = (9/5)T_C + 32
= (9/5) × (-248.58) +32
= 415.44⁰ F
For carbon dioxide:
T_K = 216.55 K
∴ T_C= 216.55 – 273.15
= –56.60°C
T_F = (9/5)T_C + 32
= (9/5) × (-56.6⁰) +32
= -69.88⁰ C

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