✦ LIBER ✦
T-S diagram for helium that extends below the lambda line
✍ Scribed by J.G. Weisend; J.M. Pfotenhauer; S.W. Van Sciver
- Book ID
- 103051205
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- English
- Weight
- 176 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0011-2275
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✦ Synopsis
Temperature-entropy (T-S) phase diagrams for helium between 1 and 7 K have been generated from available numerical codes. These diagrams show isobaric and isenthalpic slope changes at the lambda (X) point. In the He II regime, the entropy is an increasing function of pressure, which is exactly opposite to the behaviour of ordinary fluids. This effect is caused by the depression of the X transition with applied pressure.