caa a22 4500 469041714 CHVBK 20180323132813.0 cr unu---uuuuu 170328e19920401xx s 000 0 eng 10.1007/BF02875379 doi (NATIONALLICENCE)springer-10.1007/BF02875379 Effect of liquid phase on the triple point pressure of argon [Elektronische Daten] [A Bandyopadhyay, J Sharma, E Gopal] We report here a systematic data analysis of the vapour pressure of argon at different amounts of the liquid phase to understand the thermodynamic behaviour of this inert gas around triple point. At the triple point plateau, the applied heat pulse melts a certain phase of solid argon into liquid and increases vapour pressure. It is observed that this vapour pressure attains the thermodynamic equilibrium pressure after a certain time interval. The expoential decay of the vapour pressure as a function of time at different fractions of the liquid phase shows two different features. In one region, the relexation time constant (τ) is low and is not varying with the liquid phase, while in the other region the value ofτ increases with the amount of the liquid phase. Further, the peak pressure from the equilibrium pressure (ΔP h), obtained from the fitting parameters, shows a dip at around 50% of the liquid phase. A qualitative physical interpretation has been given to explain these results. Indian Academy of Sciences, 1992 Argon triple point nationallicence pressure measurements nationallicence relaxation time nationallicence liquid phase nationallicence 44.50 nationallicence 07.35 nationallicence Bandyopadhyay A. National Physical Laboratory, 110 012, New Delhi, India aut Sharma J. National Physical Laboratory, 110 012, New Delhi, India aut Gopal E. National Physical Laboratory, 110 012, New Delhi, India aut Pramana Springer India 38/4(1992-04-01), 335-341 0304-4289 38:4<335 1992 38 12043 https://doi.org/10.1007/BF02875379 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02875379 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bandyopadhyay A. National Physical Laboratory, 110 012, New Delhi, India aut NATIONALLICENCE 700 1- Sharma J. National Physical Laboratory, 110 012, New Delhi, India aut NATIONALLICENCE 700 1- Gopal E. National Physical Laboratory, 110 012, New Delhi, India aut NATIONALLICENCE 773 0- Pramana Springer India 38/4(1992-04-01), 335-341 0304-4289 38:4<335 1992 38 12043 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer