Law of corresponding states for melting curves of hydrogen isotopes
N. G. BereznyakPhysicotechnical Institute, Academy of Sciences of the Ukrainian SSR, KharkovA. A. SheǐninaPhysicotechnical Institute, Academy of Sciences of the Ukrainian SSR, KharkovR. M. SibilevaPhysicotechnical Institute, Academy of Sciences of the Ukrainian SSR, Kharkov
ABI
Аннотация
A universal equation describing the melting curves for hydrogen isotopes and their ortho-para modifications is obtained for a wide temperature range (from triple points to room temperatures) and pressures up to 7.7 · 104 atm with the maximum error not exceeding 3.5%. The contribution of zero-point vibration energy to the properties of isotopes is effectively taken into account in new reduced coordinates P* = P/(L0/V0) and T* = T/Ttr due to the employment of individual macroscopic characteristics.
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