Discussion Forum : Engineering Thermodynamics
Question - The absolute zero pressure can be attained at a temperature of
Options:
A .  0°C
B .  -273°C
C .  273 K
D .  None of these
Answer: Option D
Correct Option is (B)
The lower the temperature, the lower the pressure inside of the sphere. If the exact values were plotted out, a linear relationship would be apparent. Extrapolating this line to the point where there would be no pressure yields absolute zero, which is about -273.15 degrees Celsius.

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