Publication
Understanding the thermodynamics of equilibria across semipermeable membranes
| dc.contributor.author | Ferreira, João Paulo Medeiros | |
| dc.date.accessioned | 2011-10-21T16:51:06Z | |
| dc.date.available | 2011-10-21T16:51:06Z | |
| dc.date.issued | 2005 | |
| dc.description.abstract | Osmotic equilibrium is ubiquitous in biological systems and it also underlies a number of technological processes, such as reverse osmosis. Quite often, students know how to calculate osmotic pressures in ideal diluted solutions, but they do not have a deep understanding of the driving forces for transport and how these relate to thermodynamic variables. This article derives, in is simple and straightforward way, the conditions for equilibria through selective membranes, starting with ideal gas mixtures. Chang with physical conditions of several thermodynamic properties are evaluated.Then, the analysis is extended to ideal liquid mixtures, pointing out the similarities and difterences with the previous situation. an expression for the reversible work associated with a change in concentration is derived, and it is applied to the process of desalination of seawater | por |
| dc.identifier.citation | "The Chemical Educator". ISSN 1430-4171. 10:10 (2005) 1-5 | por |
| dc.identifier.uri | http://hdl.handle.net/10400.14/6752 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.publisher | TCE | por |
| dc.title | Understanding the thermodynamics of equilibria across semipermeable membranes | por |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| person.familyName | Ferreira | |
| person.givenName | João | |
| person.identifier.ciencia-id | FD19-02DC-1EE2 | |
| person.identifier.orcid | 0000-0001-9483-5225 | |
| person.identifier.scopus-author-id | 7403252256 | |
| rcaap.rights | restrictedAccess | por |
| rcaap.type | article | por |
| relation.isAuthorOfPublication | fa25995a-3240-452c-b5a7-a48714e6cf9e | |
| relation.isAuthorOfPublication.latestForDiscovery | fa25995a-3240-452c-b5a7-a48714e6cf9e |
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