Labari game da Dokar Sifili ta Thermodynamics
Zuwa yanzu, mun lura da daidaiton zafi da abubuwa biyu suka fuskanta.
Domin fahimtar manufar daidaiton zafi sosai, bari mu sake duba abubuwa uku (misali abubuwa A, abu B, da abubuwa C). Misali, abu B da abu C ba sa taɓa juna, amma abu A yana taɓa abu B kuma abu A yana taɓa abu C. Ka lura da hoton da ke ƙasa. Domin a cikin hulɗa da kowannensu banda abu A da abu B suna cikin daidaiton zafi, haka nan abu A da abu C suna cikin daidaiton zafi. Shin abubuwa B da C waɗanda ba sa taɓa juna suma suna cikin daidaiton zafi? Idan muka yi amfani da dabaru kawai, za mu iya cewa abu B da abu C suma suna cikin daidaiton zafi, duk da cewa ba sa taɓa juna. Abu A da abu B suna cikin daidaiton zafi, ma'ana zafin abu A = zafin abu B.
Abubuwa A da abu C suma suna cikin daidaiton zafi, zafin abu A = zafin abu C. Saboda TA = T baB da kuma TA = T baC, sannan TB = T baCTunda kimiyyar lissafi ba wai kawai ta dogara ne da dabaru ba, tana buƙatar a tabbatar da ita ta hanyar gwaje-gwaje. Dangane da sakamakon gwaji, ya bayyana cewa abu B da abu C suma suna cikin daidaiton zafi. A wannan yanayin, zafin abu B = zafin abu C.
Don haka duk da cewa abu B da abu C ba sa taɓa juna, amma saboda suna taɓa abu A, to abu B da abu C suma suna cikin daidaiton zafi.
Don haka, idan abubuwa biyu suna cikin daidaiton zafi tare da abu na uku, to abubuwa ukun suna cikin daidaiton zafi da juna. Wannan shine Dokar Zeroth of Thermodynamics. Dokar Zeroth of Thermodynamics ta bayyana ƙa'idar aiki na ma'aunin zafi, na'urar auna zafin jiki. Bita na ma'aunin zafi na mercury ko ma'aunin zafi na barasa. Barasa ko mercury a cikin hulɗa da gilashi da gilashi a cikin hulɗa da abubuwan da aka auna zafinsu, kamar iska, ruwa ko jikin ɗan adam. Kodayake mercury ba ya hulɗa da iska ko ruwa ko jikin ɗan adam, saboda mercury a cikin hulɗa da gilashin,
Idan gilashi da iska ko ruwa ko jikin ɗan adam suna cikin daidaiton zafi, to Mercury, da iska ko ruwa ko jikin ɗan adam, suma suna cikin daidaiton zafi.
Dokokin kimiyyar lissafi galibi suna farawa daga 1, ba kasafai suke farawa daga sifili ba. Ana kiransu da dokar thermodynamic 0 saboda, bayan dokar thermodynamics ta 1, an tsara dokar thermodynamics ta biyu da kuma dokar thermodynamics ta uku, masana kimiyya sun fahimci cewa akwai wata doka mafi mahimmanci wadda ba a tsara ta ba. Saboda haka, masana kimiyya suna kiran wannan Dokar Zeroth of Thermodynamics.
