Sublimation pressure of Xe and zero temperature cohesion energy of Ar, Kr and Xe from sublimation pressure and heat capacity data

✍ Scribed by C. Tessier; A. Terlain; Y. Larher

• Publisher: Elsevier Science
• Year: 1982
• Tongue: English
• Weight: 430 KB
• Volume: 113
• Category: Article
• ISSN: 0378-4371
• DOI: 10.1016/0378-4371(82)90021-8

✦ Synopsis

We present new determinations of the sublimation pressures of Xe from 100 to 120K. From these results and from the heat capacity of solid Xe, an accurate value of ho, the zero temperature sublimation energy of the solid, is obtained. Similar estimates of ho are made for Ar and Kr, using previously published data. It is shown that knowing ho and the heat capacity of the solid phase, precise values of the sublimation pressures can be calculated. This is very useful since, below a pressure of about 3 Torr, most of the published results are very imprecise. In fact, we undertook the present study, when we noticed that previously published results for Xe were wrong by 15% below 3 Torr.