SamuwarKimiyya

Zafi na iska

A takamaiman zafi kamar yadda wani jiki darajar nuna adadin thermal makamashi ake bukata don canja aiki m zazzabi, a cikin wannan yanayin iska, to daya mataki. A zafi damar iska ne kai tsaye dogara a kan zafin jiki da kuma matsa lamba. A wannan yanayin, da hanyoyi dabam dabam da za a iya amfani da su karatu daban-daban na zafi damar.

Shifran, zafi damar iska da aka bayyana a matsayin rabo na adadin zafi zuwa increment na zazzabi. Jikin zafi, ciwon wani taro na 1 kg, fiye da ake kira musamman. A matauni takamaiman zafi na iska - zafi damar da mole na abu. Nuna da zafi iya aiki - J / K. A matauni takamaiman zafi, bi da bi J / (mol * K).

A zafi damar za a iya daukan wani jiki halayyar da wani abu, a cikin wannan yanayin iska, a yanayin saukan a lokacin da ji ne da za'ayi a karkashin m yanayi. Mafi sau da yawa wadannan ma'aunai suna da za'ayi a gaba da matsa lamba. Saboda haka m da isobaric takamaiman zafi na iska. Yana ƙara da kara yawan zafin jiki da kuma matsa lamba, kazalika da mikakke aiki na data dabi'u. A wannan yanayin da zazzabi canji yakan faru a gaba da matsa lamba. Don lissafi da takamaiman zafi a gaba da matsa lamba wajibi ne domin sanin pseudocritical zafin jiki da kuma matsa lamba. Aka ƙaddara ta amfani da tunani data.

Heat damar iska. Features

Iska ne a gas cakuda. Lokacin dauke da wadannan zaton soma a thermodynamic. Kowane gas a cakuda ya kamata a ko'ina rarraba a ko'ina cikin girma. Saboda haka, juz'i na gas daidaita da girma daga cikin dukan cakuda. Kowane gas a cakuda mallaka ta m matsa lamba cewa shi exerts a kan jirgin ruwa bango. Kowace daga cikin gyara na gas cakuda ya kamata da zazzabi daidai da jimlar cakuda. A Naira Miliyan Xari da m matsin lamba daga duk aka gyara daidai da matsa lamba na cakuda. iska takamaiman kadan lissafi aka yi a kan tushen da bayanai a kan abun da ke ciki na gas cakuda da zafin damar da mutum aka gyara.

A zafi damar wani abu uniquely characterizes. Daga farko ka'idar Thermodynamics ta iya ƙarasa da cewa da ciki makamashi na jiki dabam ba kawai dangane da adadin generated zafi, amma kuma ta inganta jiki yi. A karkashin yanayi daban-daban da ya kwarara daga zafi canja wuri tsari, jiki na yin aiki na iya bambanta. Saboda haka, da wannan sako jiki kadan yawa zai iya haifar da dama darajar canje-canje a cikin zafin jiki da kuma ciki makamashi na jiki. Wannan yanayin ne halayyar kawai ga gaseous kafofin watsa labarai. Ba kamar daskararru da taya, gaseous abubuwa, iya ƙwarai canja ƙarar da kuma yin aiki. Wannan shi ne dalilin da ya sa kadan damar iska kayyade yanayin da thermodynamic tsari.

Amma ba ya yi aikin a wani m iska girma. Saboda haka, canji a ciki makamashi ne na gwargwado ga canji a cikin zazzabi. A rabo daga takamaiman zafi a cikin wani tsari da gaba da matsa lamba ga takamaiman zafi a m girma tsari ne na dabara adiabatic tsari. An denoted da wasika daga cikin Girkanci gamma.

daga tarihi

The sharuddan "zafi damar" da "adadin zafi" ba sosai bayyana su ainihi. Wannan shi ne saboda cewa su zo ga kimiyyar zamani na phlogiston ka'idar, wanda ya rare a cikin karni na sha takwas. Followers wannan ka'idar a matsayin wani irin zafi weightless abu da aka samu a jikin. Wannan abu iya ba halakar da kuma halitta. Sanyaya da kuma dumama jikinsu ya bayyana rage ko kara da caloric abun ciki, bi da bi. A tsawon lokaci, wannan ka'ida an ayyana wanda arzikinsa ya karye. Ta iya bayyana dalilin da ya sa wannan canja wani daga cikin ciki makamashi na jiki da aka samu ta hanyar canja wurin shi zuwa wani daban-daban adadin zafi, da kuma dogara a kan aikin yi da jiki.

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