Round 9: Tossup 8

Measurements of this quantity are interpolated using 9-, 12-, and 15-degree polynomials in a calibration standard defined by 14 fixed points. This quantity is determined precisely from a platinum wire enclosed in a quartz or ceramic sheath calibrated to the ITS-90 standard. A mixture of chromel and constantan is used to determine this quantity using electrical resistivity. This quantity is inferred from the curvature of a bimetallic strip. (-5[1])In 2019, the SI unit for this quantity was redefined in terms of Boltzmann’s constant. (10[1])The spectrum of blackbody emission depends only on this (10[1])quantity. The zeroth law (10[1])of thermodynamics provides the theoretical justification for devices that measure this quantity consisting of ethanol in a glass bulb. For 10 points, name this quantity measured in kelvins. (10[1])■END■

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