Qhov txawv ntawm PV nRT thiab PV mRT yog dab tsi?
Qhov txawv ntawm PV nRT thiab PV mRT yog dab tsi?

Video: Qhov txawv ntawm PV nRT thiab PV mRT yog dab tsi?

Video: Qhov txawv ntawm PV nRT thiab PV mRT yog dab tsi?
Video: UA KAWG PEEV XWM -May maylee [official] New Song/MV/VDO 2024, Kaum ib hlis
Anonim

Txoj Cai Roj Zoo Zoo, raws li cov lus hais mus, yog qhov tseeb PV = nRT , nrog txhua tus qauv hloov pauv. Ntawm no n = m / M, qhov m yog qhov loj ntawm cov pa thiab M yog qhov hnyav molecular ntawm thegas. Hauv luv luv R hauv PV = nRT yog ntsuas los ntawm afactor M (molecular hnyav) kom tau R hauv PV = mRT.

Tsuas yog li ntawd, qhov sib npaug ntawm pV nRT yog dab tsi?

Txoj cai gas zoo tagnrho yog: pV ua = nRT , qhov twg n yog tus lej ntawm moles, thiab R yog universal gas tas li. Tus nqi ntawm R nyob ntawm cov koom haum koom nrog, tab sis feem ntau hais nrog S. I. units xws li: R = 8.314 J/mol. Qhov no txhais tau hais tias rau huab cua, koj tuaj yeem siv tus nqi R = 287 J/kg.

Ib yam li ntawd, R sawv cev rau dab tsi hauv chemistry pV nRT? Cov units ntawm universal gas tas li R yog muab los ntawm equation PV = n R T. Nws sawv rauRegnault.

Hauv qhov no, N sawv cev rau dab tsi hauv pV nRT?

. Ib txoj cai ntawm lub cev piav qhia txog kev sib raug zoo ntawm cov khoom ntsuas ntawm cov roj zoo tagnrho, qhov twg P (siab) × V (ntim) = (tus naj npawb ntawm moles) × R (gasconstant) × T (kub hauv Kelvin). Nws yog muab los ntawm kev sib koom ua ke ntawm cov roj kev cai ntawm Boyle, Charles, thiab Avogadro. Kuj hu ua universal gas law.

M yog dab tsi nyob rau hauv txoj cai gas zoo tagnrho?

Tus thawj txoj cai gas zoo tagnrho siv cov mis PV =nRT, qhov ceev version ntawm tus txoj cai gas zoo tagnrho yog PM = dRT, qhov twg P yog ntsuas hauv cua (atm), T yog ntsuas kub hauv kelvin (K), R yog txoj cai gas zoo tagnrho 0.0821 ib m (L) m ol(K) ib yam li hauv cov qauv qub, tab sis M yog tam sim no molar mass (g m ol

Pom zoo: