Update thermochemical properties of zinc material

[cake-pie]

Summary

Bugfixes "Fix thermochemical properties of zinc"

Purpose of change

Follow up to #62927

In that PR, I discovered that the entry for zinc material in materials.json had incorrect properties from being lazily cloned from aluminum. I was able to fix latent_heat and specific_heat_solid at the time but was not able to source a figure for liquid phase heat capacity.

Describe the solution

The heat capacity of zinc has been determined by adiabatic calorimetry from 298.15 to 940K. For crystalline zinc Cp,m increases from 25.47JK−1mol−1 at the former temperature to an evenly extrapolated value of 30.96JK−1mol−1 at the triple-point temperature 692.681K (ITS-90). The estimated heat capacity increment of fusion is 2.46JK−1mol−1. For liquid zinc the heat capacity decreases from 33.42JK−1mol−1 at Tfus to 32.31JK−1mol−1 at 940K. Thermodynamic function values have been derived and are tabulated for selected temperatures after revaluation of earlier low temperature results.

-- Grønvold, Fredrik & Stølen, Svein. (2002). Heat capacity of solid zinc from 298.15 to 692.68 K and of liquid zinc from 692.68 to 940 K: Thermodynamic function values. Thermochimica Acta - THERMOCHIM ACTA. 395. 127-131. 10.1016/S0040-6031(02)00217-4.

It is 33.42JK−1mol−1 at 692.681K (419.531°C).

    "specific_heat_liquid": 0.51, // = 33.42/65.38
    "specific_heat_solid": 0.39,  // = 25.47/65.38
    "latent_heat": 112,           // = 7320/65.38