TAVZEI GIBBS

TAVZEI GIBBS, qonuni umdai fizikai statistikist, ki taqsimoti ehtgamoliyathoi holathoi gunoguni sistemai harorati miqdori zarrahoyash dogami va bo muhiti haroratash muqarrar dar muvozinati harorati budaro ifoda mekunad; onro soli 1901 fiziki amerikoi J. U. Gibbs muqarrar namud. Muvofiqi in taqsimot, ehtimoliyati holati mikroskopii sistema ba funksiyahoi taqsimotii f(qi Ri) mutanosib ast, ki on ba koordinata qi va impulsi zarrahoi sistema ba tarzi zerin vobasta ast:
f(qi,pi)= Ae –H(qi,pi)/ T
in jo N (qi, ri) — funkcizi gamiltoyayi sistema, yane energiyai purrai sistema, ki bo koordinata va impulsi zarra ifoda yoftaast, k — sobitai Volsman, T — harorati mutlaq; sobitai A ba va vobasta nest va bo yorii sharti bameyorovari muayyan karda meshanad. Sh. Shokirov.