An empirical equation for temperature and pressure dependence of liquid heat capacity

✍ Scribed by Jovan D. Jovanović; Andjela B. Knežević-Stevanović; Dušan K. Grozdanić

• Publisher: Elsevier
• Year: 2009
• Tongue: English
• Weight: 172 KB
• Volume: 40
• Category: Article
• ISSN: 1876-1070
• DOI: 10.1016/j.jtice.2008.07.001

✦ Synopsis

A new empirical equation for liquid heat capacity calculation, as a function of temperature and pressure is recommended. This four-parameter equation was tested and compared to the four-parameter equation developed by Guseinov et al. (1988), five-parameter equation developed by Garg et al. (1993) and nineparameter equation developed by Nakagawa et al. (1993), using 73 sets with 4395 literature experimental heat capacity data for 46 chemical compounds. The obtained results indicate that the proposed four-parameter equation gives in many cases better results than the tested four-and fiveparameter equations and in few cases even better than the nine-parameter equation.