Video: Puas yog cov roj zoo tagnrho muaj lub zog kinetic?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib zoo tagnrho gas txhais tau tias yog ib qho uas tag nrho cov kev sib tsoo ntawm atoms los yog molecules zoo kawg nkaus eleastic thiab nyob rau hauv uas tsis muaj intermolecular txaus nyiam rog. Nyob rau hauv xws li ib tug gas , tag nrho cov internal zog yog nyob rau hauv daim ntawv ntawm kinetic zog thiab ib qho kev hloov hauv sab hauv zog yog nrog rau kev hloov ntawm qhov kub thiab txias.
Ib yam li ntawd ib tug yuav nug, dab tsi yog lub zog kinetic ntawm ib qho roj zoo tagnrho?
Cov lub zog sab hauv ntawm ib qho zoo tagnrho roj Qhov tshwm sim saum toj no hais tias qhov nruab nrab translational kinetic zog ntawm ib tug molecule nyob rau hauv ib tug zoo tagnrho roj yog 3/2 kT. Rau cov roj ua los ntawm ib qho atoms (cov pa roj yog monatomic, hauv lwm lo lus), lub zog txhais lus kinetic kuj yog tag nrho. lub zog sab hauv.
Tom qab ntawd, lo lus nug yog, qhov kev xav ntawm lub zog kinetic yog dab tsi? Kinetic Molecular Kev xav hais tias cov pa roj yog nyob rau hauv qhov kev txav mus tas li thiab nthuav tawm kev sib tsoo zoo kawg nkaus. Kinetic Molecular Kev xav siv tau los piav txog Charles' thiab Boyle's Laws. Qhov nruab nrab kinetic zog ntawm ib tug sau ntawm cov pa particles ncaj qha proportional rau qhov kub thiab txias xwb.
Ib yam li ntawd, qhov nruab nrab kinetic zog yog dab tsi rau ib tug monatomic zoo tagnrho gas particle?
Rau ib monatomic zoo tagnrho gas (xws li helium, neon, lossis argon), tsuas yog pab txhawb rau lub zog los ntawm translational kinetic zog . Cov nruab nrab txhais lus kinetic zog ntawm ib qho atom tsuas yog nyob ntawm qhov gas kub thiab muab los ntawm kev sib npaug: K avg = 3/2 kT.
Cov mis rau nruab nrab kinetic zog yog dab tsi?
Cov nruab nrab kinetic zog (K) yog sib npaug rau ib nrab ntawm qhov loj (m) ntawm txhua lub roj molecule lub sij hawm RMS ceev (vrms) squared.
Pom zoo:
Thaum lub ntim ntawm ib qho piv txwv ntawm cov pa roj yog txo lub siab ntawm cov qauv ntawm cov pa roj?
Kev txo qis Cov pa roj sib xyaw txoj cai hais tias lub siab ntawm cov pa roj yog inversely cuam tshuam nrog lub ntim thiab ncaj qha ntsig txog qhov kub thiab txias. Yog tias qhov kub thiab txias yog nyob tas li, qhov sib npaug raug txo rau Boyle txoj cai. Yog li ntawd, yog tias koj txo qhov siab ntawm cov roj av tas li, nws qhov ntim yuav nce ntxiv
Dab tsi yog txoj kev pub dawb rau cov molecules hauv cov roj zoo tagnrho?
Hauv cov pa roj, cov molecules sib tsoo nrog ib leeg. Momentum thiab lub zog tau txais kev cawmdim hauv cov kev sib tsoo no, yog li txoj cai roj zoo tagnrho tseem siv tau. Qhov txhais tau tias dawb txoj kev λ yog qhov nruab nrab ntawm qhov kev ncua deb ib qho kev mus los ntawm kev sib tsoo. Yog hais tias 2 hais, txhua lub vojvoog R, tuaj nyob rau hauv 2R ntawm ib leeg, ces lawv sib tsoo
Lub tswv yim ntawm cov roj zoo tagnrho yog dab tsi?
Ideal Gas Law. Ib qho roj zoo tagnrho txhais tau tias yog ib qho uas txhua qhov kev sib tsoo ntawm cov atoms lossis cov molecules zoo kawg nkaus eleastic thiab uas tsis muaj qhov cuam tshuam rau lub zog. Ib tug tuaj yeem pom nws raws li ib qho kev sau ntawm cov spheres zoo kawg nkaus uas sib tsoo tab sis uas tsis muaj kev cuam tshuam nrog ib leeg
Dab tsi yog cov qauv ntawm lub zog nyob rau hauv lub peev xwm thiab lub zog kinetic?
Lub zog muaj peev xwm yog khaws cia lub zog thiab lub zog ntawm txoj haujlwm - lub zog gravitational. Muaj ntau hom kev muaj peev xwm muaj zog. Kinetic zog yog kev txav - ntawm nthwv dej, electrons, atoms, molecules, tshuaj, thiab khoom. Chemical Zog yog lub zog khaws cia hauv cov khoom sib txuas ntawm atoms thiab molecules
Cov roj twg coj zoo tshaj plaws zoo li cov pa roj zoo?
helium Raws li txoj cai, koj ua li cas txiav txim siab seb cov roj twg coj zoo tshaj plaws? Feem ntau, a gas coj mas zoo li ib zoo tagnrho gas ntawm qhov kub siab dua thiab qis dua, vim tias lub zog muaj peev xwm vim muaj zog intermolecular ua tsawg dua piv nrog cov khoom 'kinetic zog, thiab qhov loj ntawm cov molecules yuav tsawg dua piv rau qhov khoob ntawm lawv.