cov txheej txheem Polytropic yog internally reversible . Qee qhov piv txwv yog vapors thiab cov pa roj zoo meej gases Muaj peb chav kawm ntawm cov roj zoo tagnrho: classical lossis Maxwell-Boltzmann cov roj zoo tagnrho, qhov zoo tshaj plaws quantum Bose gas, muaj li ntawm bosons, thiab. Qhov zoo tshaj plaws quantum Fermi gas, tsim los ntawm fermions. https://en.wikipedia.org › wiki › Ideal_gas
Ideal gas - Wikipedia
hauv ntau cov txheej txheem tsis ntws, xws li: n=0, tshwm sim hauv P=tas li xws li txheej txheem isobaric.
Puas yog tag nrho cov txheej txheem polytropic?
Tsis yog, tag nrho cov txheej txheem thermodynamic tsis yog polytropic. Ua piv txwv, xav txog lub voj voog ntawm lub cav tiag tiag. Ib qho kev kawm tiav qib siab engineering thermodynamics ntawv yuav tsum muaj daim phiaj qhia qhov tseeb P-V daim duab.
Yuav ua li cas hauv cov txheej txheem polytropic?
Lo lus "polytropic" yog thawj zaug los piav qhia txog cov txheej txheem thim rov qab ntawm txhua qhov qhib lossis kaw ntawm cov pa roj lossis vapor uas cuam tshuam rau cov cua sov thiab ua haujlwm hloov pauv, xws li cov lus teev tseg kev sib xyaw ntawm cov khoom tau khaws cia tas mus li thoob plaws hauv cov txheej txheem.
Cov txheej txheem polytropic yog dab tsi?
qhov twg P yog qhov siab, V yog qhov ntim tshwj xeeb, n yog qhov ntsuas polytropic, thiab C yog qhov tas li. Txoj kev sib npaug ntawm cov txheej txheem polytropic tuaj yeem siv txhawm rau suav lub kaum sab xis raws qhov nkhaus ntawm C (qhov twg n tuaj yeem kwv yees).
Puas yog entropy tas li nyob rau hauv cov txheej txheem polytropic?
the cas n=, pV=tas li, sib raug rau cov txheej txheem isentropic (constant-enttropy). rooj plaub n ➝ ∞ sib raug rau cov txheej txheem isochoric (constant-volume).
