Enthalpy of Vaporization and Vapor Pressures: An Inexpensive Apparatus
An inexpensive apparatus is described for the determination of the vapor pressure of a liquid as a function of temperature for the purpose of calculating enthalpy changes of vaporization. The solid-state pressure transducer is linear above 100 torr, is useful in the range -40 to 85 °C, and is calibr...
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| Veröffentlicht in: | Journal of chemical education 2007-05, Vol.84 (5), p.822 |
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| container_title | Journal of chemical education |
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| creator | Battino, Rubin Dolson, David A Hall, Michael R Letcher, Trevor M |
| description | An inexpensive apparatus is described for the determination of the vapor pressure of a liquid as a function of temperature for the purpose of calculating enthalpy changes of vaporization. The solid-state pressure transducer is linear above 100 torr, is useful in the range -40 to 85 °C, and is calibrated using pure water. The experimental enthalpies of vaporization for ten solvents are within ca. 0 to 13% of literature values. Two different versions of the static vapor pressure apparatus are described. Also described are a simple air thermostat and an inexpensive temperature controller (±0.1 K) based on an integrated temperature sensor. The measurement time is under three hours. |
| doi_str_mv | 10.1021/ed084p822 |
| format | Article |
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The solid-state pressure transducer is linear above 100 torr, is useful in the range -40 to 85 °C, and is calibrated using pure water. The experimental enthalpies of vaporization for ten solvents are within ca. 0 to 13% of literature values. Two different versions of the static vapor pressure apparatus are described. Also described are a simple air thermostat and an inexpensive temperature controller (±0.1 K) based on an integrated temperature sensor. The measurement time is under three hours.</description><identifier>ISSN: 0021-9584</identifier><identifier>EISSN: 1938-1328</identifier><identifier>DOI: 10.1021/ed084p822</identifier><identifier>CODEN: JCEDA8</identifier><language>eng</language><publisher>Easton: Division of Chemical Education</publisher><subject>Analytical chemistry ; Chemistry ; Energy ; Enthalpy ; Laboratory Equipment ; Laboratory Experiments ; Measurement ; Physics ; Science education ; Science Experiments ; Science Instruction ; Scientific apparatus & instruments ; Temperature ; Temperature sensors ; Thermodynamics ; Vapor pressure ; Vaporization</subject><ispartof>Journal of chemical education, 2007-05, Vol.84 (5), p.822</ispartof><rights>Copyright American Chemical Society May 2007</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a307t-502f92a14091bb1fab662f085bdb577a63ac1b5d695e2e8255faea00f5ff307a3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/ed084p822$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/ed084p822$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,776,780,2751,27055,27903,27904,56716,56766</link.rule.ids><backlink>$$Uhttp://eric.ed.gov/ERICWebPortal/detail?accno=EJ770200$$DView record in ERIC$$Hfree_for_read</backlink></links><search><creatorcontrib>Battino, Rubin</creatorcontrib><creatorcontrib>Dolson, David A</creatorcontrib><creatorcontrib>Hall, Michael R</creatorcontrib><creatorcontrib>Letcher, Trevor M</creatorcontrib><title>Enthalpy of Vaporization and Vapor Pressures: An Inexpensive Apparatus</title><title>Journal of chemical education</title><addtitle>J. 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The measurement time is under three hours.</description><subject>Analytical chemistry</subject><subject>Chemistry</subject><subject>Energy</subject><subject>Enthalpy</subject><subject>Laboratory Equipment</subject><subject>Laboratory Experiments</subject><subject>Measurement</subject><subject>Physics</subject><subject>Science education</subject><subject>Science Experiments</subject><subject>Science Instruction</subject><subject>Scientific apparatus & instruments</subject><subject>Temperature</subject><subject>Temperature sensors</subject><subject>Thermodynamics</subject><subject>Vapor pressure</subject><subject>Vaporization</subject><issn>0021-9584</issn><issn>1938-1328</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNplkEFLw0AQhRdRsFYP3j0EwYOH6Owkm2y8lZJqpaAH9RomyS6m1M26m4j11xuJ1IOXeTDv4z14jJ1yuOKA_FrVIGMrEffYhGeRDHmEcp9NYDDDTMj4kB15vwbgKDI5YYvcdK-0sdug1cEL2dY1X9Q1rQnI1OMjeHTK-344N8HMBEujPq0yvvlQwcxactT1_pgdaNp4dfKrU_a8yJ_md-Hq4XY5n61CiiDtQgGoMyQeQ8bLkmsqkwQ1SFHWpUhTSiKqeCnqJBMKlUQhNCkC0ELrIYCiKTsfc61r33vlu2Ld9s4MlQVyBEwwiwfocoQq13rvlC6sa97IbQsOxc9KxW6lgT0bWeWaasfl92kKCDDYF6NNlf-r-h_zDfxCbsk</recordid><startdate>20070501</startdate><enddate>20070501</enddate><creator>Battino, Rubin</creator><creator>Dolson, David A</creator><creator>Hall, Michael R</creator><creator>Letcher, Trevor M</creator><general>Division of Chemical Education</general><general>Division of Chemical Education of the American Chemical Society</general><general>American Chemical Society</general><scope>7SW</scope><scope>BJH</scope><scope>BNH</scope><scope>BNI</scope><scope>BNJ</scope><scope>BNO</scope><scope>ERI</scope><scope>PET</scope><scope>REK</scope><scope>WWN</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>K9.</scope></search><sort><creationdate>20070501</creationdate><title>Enthalpy of Vaporization and Vapor Pressures: An Inexpensive Apparatus</title><author>Battino, Rubin ; Dolson, David A ; Hall, Michael R ; Letcher, Trevor M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a307t-502f92a14091bb1fab662f085bdb577a63ac1b5d695e2e8255faea00f5ff307a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Analytical chemistry</topic><topic>Chemistry</topic><topic>Energy</topic><topic>Enthalpy</topic><topic>Laboratory Equipment</topic><topic>Laboratory Experiments</topic><topic>Measurement</topic><topic>Physics</topic><topic>Science education</topic><topic>Science Experiments</topic><topic>Science Instruction</topic><topic>Scientific apparatus & instruments</topic><topic>Temperature</topic><topic>Temperature sensors</topic><topic>Thermodynamics</topic><topic>Vapor pressure</topic><topic>Vaporization</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Battino, Rubin</creatorcontrib><creatorcontrib>Dolson, David A</creatorcontrib><creatorcontrib>Hall, Michael R</creatorcontrib><creatorcontrib>Letcher, Trevor M</creatorcontrib><collection>ERIC</collection><collection>ERIC (Ovid)</collection><collection>ERIC</collection><collection>ERIC</collection><collection>ERIC (Legacy Platform)</collection><collection>ERIC( SilverPlatter )</collection><collection>ERIC</collection><collection>ERIC PlusText (Legacy Platform)</collection><collection>Education Resources Information Center (ERIC)</collection><collection>ERIC</collection><collection>CrossRef</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><jtitle>Journal of chemical education</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Battino, Rubin</au><au>Dolson, David A</au><au>Hall, Michael R</au><au>Letcher, Trevor M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><ericid>EJ770200</ericid><atitle>Enthalpy of Vaporization and Vapor Pressures: An Inexpensive Apparatus</atitle><jtitle>Journal of chemical education</jtitle><addtitle>J. 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| language | eng |
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| source | ACS Publications |
| subjects | Analytical chemistry Chemistry Energy Enthalpy Laboratory Equipment Laboratory Experiments Measurement Physics Science education Science Experiments Science Instruction Scientific apparatus & instruments Temperature Temperature sensors Thermodynamics Vapor pressure Vaporization |
| title | Enthalpy of Vaporization and Vapor Pressures: An Inexpensive Apparatus |
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