Practice question · Select all that apply
Which statements about the ideal gas temperature scale are correct?
Hints
- Three describe why the scale is trusted; one contradicts its whole purpose.
- The convergence at low density is what removes the substance dependence.
Show the answer
- A. It uses the triple point of water as its fixed point
- C. All gases converge on the same reading as density tends to zero
- D. It agrees with the thermodynamic scale defined from Carnot efficiencies
Why
Low-density convergence is what makes the scale nearly substance-independent, it is anchored at the triple point, and it coincides with the thermodynamic scale. Gas dependence is exactly the flaw it was designed to remove.
Practise The Zeroth Law and Thermodynamic Coefficients
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