Practice question · True or false
Two different empirical thermometers calibrated at the same two fixed points will agree at all temperatures between them.
Hints
- Do all substances vary with temperature in the same way?
- They agree at the calibration points by construction and drift in between.
Show the answer
False
Why
False, they agree at the calibration points by construction, then drift apart, because mercury, resistance and gas pressure vary differently with temperature. This is exactly why a substance-independent scale was needed.
Practise The Zeroth Law and Thermodynamic Coefficients
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More questions on The Zeroth Law and Thermodynamic Coefficients
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