Thermodynamic property fields of an adsorbate-adsorbent system

Hui T. Chua*, Kim C. Ng, Anutosh Chakraborty, Nay M. Oo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

We have developed the complete thermodynamic property fields for a single-component adsorbent + adsorbate system. These equations enable us to compute the actual specific heat capacity, the partial enthalpy, and the entropy, which are essential for the analyses of single-component adsorption processes. Conventionally, the specific heat capacity of the adsorbate is assumed to correspond to its liquid phase specific heat capacity and more recently to that of its gas phase. We have shown that the actual specific heat capacity of the adsorbate could differ significantly from what has been conventionally assumed. A simple but improved expression for the adsorbate specific heat capacity is also proposed.

Original languageEnglish (US)
Pages (from-to)2254-2259
Number of pages6
JournalLANGMUIR
Volume19
Issue number6
DOIs
StatePublished - Mar 18 2003
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Spectroscopy
  • General Materials Science
  • Surfaces and Interfaces
  • Electrochemistry

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