IPhO 1976 Problem 4

Physics · thermodynamics · first law

Problem

Experimental problem The whole text given to the students: At the workplace there are beyond other devices a test tube with 12 V electrical heating, a liquid with known specific heat (c = 2.1 J/gC) and an X material with unknown 0 thermal properties. The X material is insoluble in the liquid. Examine the thermal properties of the X crystal material between room temperature and 70 C. Determine the thermal data of the X material. Tabulate and plot the measured data. (You can use only the devices and materials prepared on the table. The damaged devices and the used up materials are not replaceable.) 1

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