SamuwarKimiyya

Wanda yana nuna wani canji a cikin ciki makamashi

Don ƙarni, lissafin kimiyya Jita-jitar cewa da yawan zafin jiki ƙaddara da gaban da ganuwa gas da kuma weightless caloric abu. Tana da yawa theories bayanin da motsi a cikin littattafai, da kuma tsakanin daban-daban batutuwa. kawai MV Lomonosov ya iya bayyana hakikanin kwayoyin halitta, da samar da wani kwayoyin-sanadin motsi ka'idar gas. A cikin muhawara da lissafin ya ya iya nuna cewa caloric a yanayi. A zafin jiki dogara a kan kudi na bazuwar tashin na kwayoyin. Ya gabatar da manufar ciki makamashi, da kuma bayani game da yadda ya canjãwa a cikin ainihin tsari.

Abin da muhawara jagoranci MV Lomonosov don hujjoji daga cikin kwayoyin-sanadin motsi ka'idar gas

Bayan sanya farko zato, cewa babu abin caloric ba wanzu a yanayi, sai ya sadu da karfi da juriya daga daraja malamai na lokaci. Su duk gane da wanzuwar caloric da novice bincike - ba. Sa'an nan, a wata ganawa da Jamus da kuma Burtaniya lissafin kimiyya da aka faɗa wa wadannan: "Dear malamai. Inda ya yi da caloric a cikin saniya? Ta ci sanyi ciyawa, sa'an nan ta jiki da aka warmed da cewa a cikin ciki akwai wani canji a ciki makamashi. Ina ya zo game da? Kuma asalin da zafi a jiki saboda da ciyawa na da sinadaran makamashi da cewa jikin dabba da aka canza kama zuwa zafi. Saboda haka, muna shaida sabon abu na makamashi canja wurin daga daya jiha zuwa wani. " Ya aka saurari, tambaya da dama tambayoyi. Wadannan da tattaunawa da shi da aka tsara da kuma dokar canji da makamashi (wanda kuma aka sani a matsayin dokar kiyayewa da makamashi), wanda aka gane ta duk ba. Daga baya, an buga shi a kananan tarin shiriritar, wanda shi ne na farko edition, inda kwayoyin-sanadin motsi ka'idar gas da aka gane.

Menene masu bincike ka'idar MV Lomonosov

Yana yanzu alama cewa duk abin da yake ma'ana a thermodynamic. Amma ya kamata mu tuna cewa shi ya kasance fiye da 250 shekaru daga farko zato ga wannan rana. Faransa Explorer Jacques Charles ya gano dokar proportionality matsin karuwa tare da karuwa a cikin gas zazzabi. Ya sa'an nan ya bayyana canji a ciki makamashi na iskar gas a lokacin da ya kona. Ya kawo dabara. Da karatunsa bayan shekaru 20 da ci gaba Gay-Lussac, suka bincika da dumama da gas a gaba da matsa lamba. An lura da yadda fistan ta sauya matsayi, sanya a cikin wani gilashi Silinda tare da dumama da kuma sanyaya. A nan sai ya zo kusa da bude manufar da gas m. Bai yi amfani da bincike, wanda ya yi shekaru 140 kafin Robert Boyle. Kawai aiki Mariotte sanya daga baya kuma tsara a Boyle ta Dokar taimake Benoit Paul Emile Clapeyron tsara da farko ra'ayi na Jadawalin ma'aikata na wani manufa gas.

Bayan shekaru 40 DI Mendeleev Jadawalin ma'aikata suna goyon bayan da sakamakon su gudanar da bincike. Yanzu dokar Clapeyron-Mendeleev ne tushen ga thermodynamic na duniya. Ya shifran kayyade canji a ciki makamashi na iskar gas da zazzabi. asali dokokin samu tabbatarwa kuma yi. Yana da aka halitta da kadan injuna, yanã gudãna a kan thermodynamic hawan keke na Otto, Diesel, Trinklera da sauran masana kimiyya.

Kawai a farkon na XX karni an taƙaice da gwaninta na magabata da kuma rubuta wani littafi a kan kwayoyin kimiyyar lissafi da aikin injiniya thermodynamic, wanda ake neatly da kwakwalensu kafa daga dukan sa na binciken.

A 'yan kalmomi game da dokar da manufa gas

PV = mRT

Yau, tare da janyewar dukkan dependencies amfani da lissafi na Jihar wani manufa gas. Babu wanda gauraya ta bijiro da batun kafa sigogi, wanda da kyau-tsare ra'ayi. Karshe daga babban gas dokar bayar da wani muhimmanci dabara cewa characterizes canji a ciki makamashi:

Du = cvDT,

Ga du ne bambanci canji a ciki makamashi, da kuma CV - An cikin gas zafi damar a m girma. A sakamakon tattaunawa da yanayin da gas m R shi gano cewa, shi characterizes gas aiki a gaba da matsa lamba.

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