Gases feem ntau yuav muaj qhov ntom ntom feem ntau vim lub zog cuam tshuam ntawm kev nyiam zoo dua cov roj molecules tsawg heev Vim li ntawd, lawv txav mus thoob qhov chaw uas txuas ntxiv mus. mus rau tiam ntawm loj inter-molecular qhov chaw. … Hauv cov pa roj, lawv muaj qhov tsawg kawg nkaus Mass / Volume.
Vim li cas qhov ntom ntawm cov pa qis dua cov khoom?
Qhov no yog vim cov khoom ntim nruj hauv ob lub xeev. Tib tus lej ntawm cov khoom nyob rau hauv cov pa sib txawv dua li hauv cov kua lossis cov khoom hauv lub xeev. Tib qhov loj yuav siv lub ntim loj dua. Qhov no txhais tau tias cov pa roj tsawg dua.
Dab tsi yog roj tsawg?
A lifting gas or lighter than air gas yog cov roj uas muaj qhov ntom ntom dua li cov pa cua hauv nruab nrab thiab nce siab dua li qhov tshwm sim. Nws yuav tsum tau rau aerostats los tsim buoyancy, tshwj xeeb tshaj yog nyob rau hauv sib sib zog nqus ya dav hlau, uas muaj xws li dawb balloons, moored balloons, thiab airships.
Puas roj ntom ntom qis lossis siab?
Gases feem ntau muaj exceptionally low densities.
Yuav ua li cas yog tus qauv ntawm cov roj density?
Yuav kom pom qhov ntom ntom, peb yuav tsum daws qhov sib npaug ntawm qhov ntim, lossis V. V=nRT / P. Txhawm rau suav nrog pawg, peb tuaj yeem siv tus lej ntawm moles, lossis n. Tus naj npawb ntawm moles sib npaug qhov loj ntawm cov pa muab faib los ntawm molecular mass.
