{"title":"二氧化硫水溶液与气态氯的氧化热。","authors":"Walter H Johnson, John R Ambrose","doi":"10.6028/jres.067A.044","DOIUrl":null,"url":null,"abstract":"<p><p>The heat of oxidation of aqueous sulfur dioxide with gaseous chlorine has been determined by calorimetric methods. The results correspond to the reaction: <dispformula> <math> <mtable> <mtr> <mtd><msub><mtext>Cl</mtext> <mn>2</mn></msub> <mrow><mo>(</mo> <mi>g</mi> <mo>)</mo></mrow> <mo>+</mo> <msub><mtext>SO</mtext> <mn>2</mn></msub> <mo>⋅</mo> <mn>2500</mn> <mspace></mspace> <msub><mi>H</mi> <mn>2</mn></msub> <mi>O</mi> <mo>+</mo> <mn>2502</mn> <mspace></mspace> <msub><mi>H</mi> <mn>2</mn></msub> <mi>O</mi> <mo>=</mo> <msub><mi>H</mi> <mn>2</mn></msub> <msub><mtext>SO</mtext> <mn>4</mn></msub> <mo>⋅</mo> <mn>2500</mn> <mspace></mspace> <msub><mi>H</mi> <mn>2</mn></msub> <mi>O</mi> <mo>+</mo> <mn>2</mn> <mrow><mo>(</mo> <mrow><mtext>HCl</mtext> <mo>⋅</mo> <mn>1250</mn> <mspace></mspace> <msub><mi>H</mi> <mn>2</mn></msub> <mi>O</mi></mrow> <mo>)</mo></mrow> <mo>,</mo></mtd> </mtr> <mtr><mtd><mi>Δ</mi> <mi>H</mi> <mrow><mo>(</mo> <mrow><mn>25</mn> <mo>°</mo> <mi>C</mi></mrow> <mo>)</mo></mrow> <mo>=</mo> <mo>-</mo> <mn>77.28</mn> <mo>±</mo> <mn>0.14</mn> <mspace></mspace> <mtext>kcal</mtext> <mo>/</mo> <mtext>mole</mtext> <mo>.</mo></mtd> </mtr> </mtable> </math> </dispformula> The heat of formation of aqueous sulfuric acid (in 2500 moles of water) has been calculated to be -213.92 kcal/mole.</p>","PeriodicalId":94340,"journal":{"name":"Journal of research of the National Bureau of Standards. Section A, Physics and chemistry","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1963-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5319805/pdf/","citationCount":"0","resultStr":"{\"title\":\"Heat of Oxidation of Aqueous Sulfur Dioxide With Gaseous Chlorine.\",\"authors\":\"Walter H Johnson, John R Ambrose\",\"doi\":\"10.6028/jres.067A.044\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The heat of oxidation of aqueous sulfur dioxide with gaseous chlorine has been determined by calorimetric methods. The results correspond to the reaction: <dispformula> <math> <mtable> <mtr> <mtd><msub><mtext>Cl</mtext> <mn>2</mn></msub> <mrow><mo>(</mo> <mi>g</mi> <mo>)</mo></mrow> <mo>+</mo> <msub><mtext>SO</mtext> <mn>2</mn></msub> <mo>⋅</mo> <mn>2500</mn> <mspace></mspace> <msub><mi>H</mi> <mn>2</mn></msub> <mi>O</mi> <mo>+</mo> <mn>2502</mn> <mspace></mspace> <msub><mi>H</mi> <mn>2</mn></msub> <mi>O</mi> <mo>=</mo> <msub><mi>H</mi> <mn>2</mn></msub> <msub><mtext>SO</mtext> <mn>4</mn></msub> <mo>⋅</mo> <mn>2500</mn> <mspace></mspace> <msub><mi>H</mi> <mn>2</mn></msub> <mi>O</mi> <mo>+</mo> <mn>2</mn> <mrow><mo>(</mo> <mrow><mtext>HCl</mtext> <mo>⋅</mo> <mn>1250</mn> <mspace></mspace> <msub><mi>H</mi> <mn>2</mn></msub> <mi>O</mi></mrow> <mo>)</mo></mrow> <mo>,</mo></mtd> </mtr> <mtr><mtd><mi>Δ</mi> <mi>H</mi> <mrow><mo>(</mo> <mrow><mn>25</mn> <mo>°</mo> <mi>C</mi></mrow> <mo>)</mo></mrow> <mo>=</mo> <mo>-</mo> <mn>77.28</mn> <mo>±</mo> <mn>0.14</mn> <mspace></mspace> <mtext>kcal</mtext> <mo>/</mo> <mtext>mole</mtext> <mo>.</mo></mtd> </mtr> </mtable> </math> </dispformula> The heat of formation of aqueous sulfuric acid (in 2500 moles of water) has been calculated to be -213.92 kcal/mole.</p>\",\"PeriodicalId\":94340,\"journal\":{\"name\":\"Journal of research of the National Bureau of Standards. Section A, Physics and chemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1963-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5319805/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of research of the National Bureau of Standards. Section A, Physics and chemistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.6028/jres.067A.044\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"1963/10/1 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of research of the National Bureau of Standards. Section A, Physics and chemistry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.6028/jres.067A.044","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"1963/10/1 0:00:00","PubModel":"Epub","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
用量热法测定了二氧化硫水溶液与气态氯的氧化热。结果与以下反应相符 Cl 2 ( g ) + SO 2 ⋅ 2500 H 2 O + 2502 H 2 O = H 2 SO 4 ⋅ 2500 H 2 O + 2 ( HCl ⋅ 1250 H 2 O ) , Δ H ( 25 ° C ) = - 77.28 ± 0.14 千卡/摩尔。 经计算,硫酸水溶液(在 2500 摩尔水中)的形成热为-213.92 千卡/摩尔。
Heat of Oxidation of Aqueous Sulfur Dioxide With Gaseous Chlorine.
The heat of oxidation of aqueous sulfur dioxide with gaseous chlorine has been determined by calorimetric methods. The results correspond to the reaction: The heat of formation of aqueous sulfuric acid (in 2500 moles of water) has been calculated to be -213.92 kcal/mole.