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All of the following require an absolute temperature EXCEPT

  • A.the ideal gas law as normally written
  • B.the Arrhenius rate expression for a reaction
  • C.a Carnot efficiency calculation for a cycle
  • D.a heat capacity times a temperature change

Answer: D

A temperature difference has the same magnitude in Celsius as in kelvin, so a sensible heat calculation may use either. The other three all divide by or exponentiate the temperature itself, which requires the absolute scale.

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