赫士定律

赫士定律（英語：Hess's law），又名反應熱加成性定律（英語：the law of additivity of reaction heat）：若一反應為二個反應式的代數和時，其反應熱為此二反應熱的代數和。也可表达为在条件不变的情况下，化学反应的反應熱只与起始和终了状态有关，与变化途径无关[1][2]。盖斯定律是由盖斯在1840年发表的论文中提出的。

数学表达式

赫士定律描述了物质发生化学反应后的焓的变化等于生成物的总标准生成焓和反应物的总标准生成焓之差，即是

參考文獻

  1. ^ Mannam Krishnamurthy; Subba Rao Naidu. 7. Lokeswara Gupta (编). Chemistry for ISEET - Volume 1, Part A 2012. Hyderabad, India: Varsity Education Management Limited. 2012: 244. 
  2. ^ Hess's Law - Conservation of Energy. University of Waterloo. [12 January 2014]. （原始内容存档于2015-01-09）. 

Read other articles:

Francisco Mendes

Francisco MendesChico Mendes pada saat pesta pernikahannya di Ziguinchor, Senegal (1973) Perdana Menteri Guinea-Bissau ke-1Masa jabatan24 September 1973 – 7 Juli 1978PresidenLuís Cabral PenggantiConstantino Teixeira Informasi pribadiLahir(1939-02-07)7 Februari 1939Enxude, Guinea-BissauMeninggal7 Juli 1978(1978-07-07) (umur 39)Partai politikPartai Afrika untuk Kemerdekaan Guinea dan Tanjung VerdePekerjaanPolitisiSunting kotak info • L • B Pesta pernikahan Chi...

 

Huruf illat

Artikel ini memiliki beberapa masalah. Tolong bantu memperbaikinya atau diskusikan masalah-masalah ini di halaman pembicaraannya. (Pelajari bagaimana dan kapan saat yang tepat untuk menghapus templat pesan ini) Artikel ini perlu dikembangkan agar dapat memenuhi kriteria sebagai entri Wikipedia.Bantulah untuk mengembangkan artikel ini. Jika tidak dikembangkan, artikel ini akan dihapus. Artikel ini tidak memiliki referensi atau sumber tepercaya sehingga isinya tidak bisa dipastikan. Tolong bant...

 

Insan Nur Akbar

Insan Nur AkbarLahirInsan Nur Akbar26 Juni 1977 (umur 46)Kabupaten Soppeng, Sulawesi Selatan, IndonesiaNama lainAkbar KobarPekerjaanPelawak tunggalpresenteraktorTahun aktif2000—sekarang Insan Nur Akbar, dikenal sebagai Akbar Kobar (lahir 26 Juni 1977) adalah seorang pelawak tunggal, presenter, dan aktor Indonesia. Ia dikenal sejak meraih peringkat kedua dalam Stand Up Comedy Indonesia Kompas TV pada 2011. Karier Sejak kuliah, ia sudah berhasrat ingin menjadi pelawak. Meski S...

1599 en science

Chronologies Données clés 1596 1597 1598  1599  1600 1601 1602Décennies :1560 1570 1580  1590  1600 1610 1620Siècles :XIVe XVe  XVIe  XVIIe XVIIIeMillénaires :-Ier Ier  IIe  IIIe Chronologies thématiques Art Architecture, Arts plastiques (Dessin, Gravure, Peinture et Sculpture), Littérature et Musique classique   Ingénierie (), Architecture et ()   Politique Droit   Religion (,)   Science Santé et médecine &...

 

McLaughlin Natural Reserve

University of California Natural Reserve System reserve McLaughlin Natural ReserveUS state of CaliforniaShow map of CaliforniaMcLaughlin Natural Reserve (the United States)Show map of the United StatesLocation26775 Morgan Valley RdNearest cityLower Lake, CaliforniaCoordinates38°52′26″N 122°25′54″W / 38.87389°N 122.43167°W / 38.87389; -122.43167[1]Area7,050 acres (28.5 km2)Established1993Governing bodyUniversity of California, Davis Th...

 

Riverstone railway station

Railway station in Sydney, New South Wales, Australia RiverstoneEastbound view from Platform 2General informationLocationRiverstone Parade, RiverstoneCoordinates33°40′45″S 150°51′37″E / 33.67913°S 150.86033°E / -33.67913; 150.86033Elevation16 metres (52 ft)Owned byTransport Asset Holding EntityOperated bySydney TrainsLine(s)RichmondDistance45.96 kilometres from CentralPlatforms2 sideTracks2ConnectionsBusConstructionStructure typeGroundAccessibleAssiste...

Papi (lagu)

PapiSingel oleh Jennifer Lopezdari album Love?Dirilis10 Agustus 2011 (2011-08-10)Direkam2010GenreDanceDurasi3:43LabelIslandPencipta RedOne AJ Junior BeatGeek Teddy Sky Bilal The Chef Jimmy Joker Produser RedOne BeatGeek Jimmy Joker Kuk Harrell Kronologi singel Jennifer Lopez I'm Into You (2011) Papi (2011) T.H.E. (The Hardest Ever) (2011) Video musikPapi di YouTube Papi adalah lagu yang direkam oleh penyanyi asal Amerika Serikat, Jennifer Lopez, untuk album studio ketujuhnya Love? (2011)...

 

Laurence Harvey

Untuk orang lain dengan nama yang sama, lihat Laurence Harvey (disambiguasi). Laurence HarveyLaurence Harvey pada 1973,foto buatan Allan WarrenLahirLaruschka Mischa Skikne(1928-10-01)1 Oktober 1928Joniškis, LituaniaMeninggal25 November 1973(1973-11-25) (umur 45)Hampstead, London, InggrisSebab meninggalKanker lambungMakamSanta Barbara Cemetery, Santa Barbara, California, ASNama lainZvi Mosheh SkiknePekerjaanAktorTahun aktif1948–1973Suami/istriMargaret Leighton ​...

 

Bristol Arms Hotel

Heritage-listed pub in Sydney, Australia Bristol Arms HotelBristol Arms Hotel in 2010Location81 Sussex Street, Sydney central business district, City of Sydney, New South Wales, AustraliaCoordinates33°52′04″S 151°12′12″E / 33.8678°S 151.2032°E / -33.8678; 151.2032Builtc. 1898Architectural style(s)Federation Free Classical New South Wales Heritage RegisterOfficial nameWelcome Inn Hotel; Bristol Arms HotelTypeState heritage (built)Designated2 April 1999...

The Waning Sex

1926 film by Robert Zigler Leonard The Waning SexFilm posterDirected byRobert Z. LeonardWritten byJoe Farnham (titles)F. Hugh HerbertFrederica Sagor (uncredited)Based onThe Waning Sexby Fanny and Frederic HattonProduced byHarry RapfStarringNorma ShearerConrad NagelCinematographyBen ReynoldsEdited byWilliam LeVanwayDistributed byMetro-Goldwyn-MayerRelease date September 5, 1926 (1926-09-05) Running time70 minutesCountryUnited StatesLanguageSilent (English intertitles) The Waning...

 

WMDE

Independent TV station in Dover, Delaware This article is about the television station. For the Wikimedia Foundation chapter, see Wikimedia Deutschland. WMDEDover, DelawareSalisbury–Baltimore, MarylandWashington, D.C.United StatesCityDover, DelawareChannelsDigital: 5 (VHF)Virtual: 36BrandingWMDE 36ProgrammingAffiliations36.1: ShopHQfor others, see § SubchannelsOwnershipOwnerWRNN-TV Associates Limited Partnership(RNN D.C. License Co., LLC)HistoryFoundedMay 4, 2011First air dateMay ...

 

The Guernsey Literary and Potato Peel Pie Society (film)

2018 film directed by Mike Newell The Guernsey Literary and Potato Peel Pie SocietyTheatrical release posterDirected byMike NewellScreenplay by Kevin Hood Don Roos Tom Bezucha Based onThe Guernsey Literary and Potato Peel Pie Societyby Mary Ann Shaffer and Annie BarrowsProduced by Paula Mazur Mitchell Kaplan Graham Broadbent Peter Czernin Starring Lily James Michiel Huisman Glen Powell Jessica Brown Findlay Katherine Parkinson Matthew Goode Tom Courtenay Penelope Wilton Nicolo Pasetti Cinemat...

コルク

この記事は検証可能な参考文献や出典が全く示されていないか、不十分です。出典を追加して記事の信頼性向上にご協力ください。（このテンプレートの使い方）出典検索?: コルク – ニュース · 書籍 · スカラー · CiNii · J-STAGE · NDL · dlib.jp · ジャパンサーチ · TWL（2017年4月） コルクを打ち抜いて作った瓶の栓 コルク（木栓、�...

 

Donato Renzetti

Questa voce o sezione sull'argomento musicisti italiani non cita le fonti necessarie o quelle presenti sono insufficienti. Puoi migliorare questa voce aggiungendo citazioni da fonti attendibili secondo le linee guida sull'uso delle fonti. Segui i suggerimenti del progetto di riferimento. Questa voce o sezione sull'argomento musicisti non è ancora formattata secondo gli standard. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. Segui i suggerimenti del progetto di ri...

 

哥伦布 (密西西比州)

密西西比州 哥伦布城市綽號：Possum Town哥伦布位于密西西比州的位置坐标：33°30′06″N 88°24′54″W / 33.501666666667°N 88.415°W / 33.501666666667; -88.415国家 美國州密西西比州县朗兹县始建于1821年政府 • 市长罗伯特·史密斯 (民主党)面积 • 总计22.3 平方英里（57.8 平方公里） • 陸地21.4 平方英里（55.5 平方公里） • ...

Spider-Man: Edge of Time

2011 video game 2011 video gameSpider-Man: Edge of TimeDeveloper(s)BeenoxOther Ocean Interactive (DS)Publisher(s)ActivisionDirector(s)Gerard Lehiany, Ramiro BelangerProducer(s)Brant NicholasWriter(s)Peter David[3][4][5]Composer(s)Gerard MarinoPlatform(s) Nintendo DS Nintendo 3DS PlayStation 3 Xbox 360 Wii ReleaseNA: October 4, 2011[1][2]EU: October 14, 2011[1][2]AU: October 26, 2011Genre(s)Action-adventureMode(s)Single-player Spider-Man:...

 

Erdwärmesonde

Bohrung einer Erdwärmesonde (links im Vordergrund aufgerollt die eigentliche Sonde) Der U-förmige Sondenfuß, das untere Ende einer Erdwärmesonde. Die Anschlußrohre wurden durchtrennt. Die Rohre einer Erdwärmesonde ragen aus dem Erdboden, sind rot markiert und müssen noch an den Wärmeträgerkreislauf angeschlossen werden. Eine Erdwärmesonde (EWS) ist ein Erdwärmeübertrager, in dem eine Wärmeträgerflüssigkeit zirkuliert. Im Gegensatz zum horizontal verlegten Erdwärmekollektor wir...

 

Howell Township, New Jersey

Township in Monmouth County, New Jersey, US Township in New JerseyHowell Township, New JerseyTownshipManasquan Reservoir coat of armsLocation of Howell Township in Monmouth County highlighted in orange (right). Inset map: Location of Monmouth County in New Jersey highlighted in black (left). Interactive map of Howell Township, New JerseyHowell TownshipLocation in Monmouth CountyShow map of Monmouth County, New JerseyHowell TownshipLocation in New JerseyShow map of New JerseyHowell TownshipLoc...

Abstract polytope

Poset representing certain properties of a polytope This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Abstract polytope – news · newspapers · books · scholar · JSTOR (April 2016) (Learn how and when to remove this message) A square pyramid and the associated abstract polytope. In mathematics, an abstract polyt...

 

Hauran Druze Rebellion

Druze uprising against Ottoman authority in the Syrian province Hauran Druze rebellionDateMay 1909 – 8 November 1910LocationJabal ad-DuruzResult Rebellion crushed: Massive Druze casualties Execution of Zuqan al-Atrash Census and disarmament of the Druze in Hauran[2]Belligerents  Ottoman Empire Druze rebelsAllied Bedouins[1]Commanders and leaders Sami Pasha al-Farouqi Zuqan al-Atrash Strength 21,000[1] 8,000 (Druze)[1] 3,000 (Allied Bedouins)[1&#...