Video: Gram molar volume yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Gram molecular ntim (GMV) lub molar ntim , yog ntim nyob ntawm ib gram molecular qhov hnyav ntawm cov roj ntawm STP (Standard kub thiab siab).
Ntxiv rau qhov no, txhais li cas los ntawm gram molar ntim?
Cov gram molecular ntim , yog ntim nyob ntawm ib mole ntawm ib yam khoom ntawm qhov muab kub thiab siab. Gram molecular ntim Oxygen ntawm STP yog 22.4l.
Kuj Paub, molar ntim siv rau dab tsi? SI unit of molar ntim yog cubic meters ib mole (m3/mol). Txawm li cas los xij, vim qhov ntawd yog qhov loj heev ntim , lwm yam units yog feem ntau siv . Cubic centimeters ib mole (cm3/mol) yog siv rau khoom thiab kua. Cubic decimeters ib mole (dm3/mol) tuaj yeem yog siv rau cov pa.
Ua kom pom qhov no, molar volume formula yog dab tsi?
Cov Molar Volume , sawv cev los ntawm Vm, yog ntim nyob los ntawm ib qho mole ntawm cov khoom uas tuaj yeem yog cov khoom siv tshuaj lom neeg lossis cov tshuaj lom neeg ntawm Standard Temperature and Pressure (STP). Nws tuaj yeem suav tau los ntawm kev faib Molar mass (M) los ntawm qhov hnyav (ρ).
Dab tsi yog qhov molar kom muaj nuj nqis?
Molar ntau - Nws yog feem ntau yooj yim los nthuav qhia qhov dav kom muaj nuj nqis (eg., ntim , enthalpy, tshav kub muaj peev xwm, thiab lwm yam) raws li tus nqi tiag tiag muab faib los ntawm tus nqi ntawm cov khoom (cov naj npawb ntawm moles). Qhov tshwm sim kom muaj nuj nqis hu ua molar ntim , molar enthalpy, thiab lwm yam.
Pom zoo:
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Cov molar loj ntawm cov dej hauv grams yog dab tsi?
Qhov nruab nrab loj ntawm ib H2O molecule yog 18.02amu. Tus naj npawb ntawm atoms yog tus lej tseeb, tus lej ntawm mole isan pes tsawg tus lej; lawv tsis cuam tshuam tus naj npawb ntawm cov nuj nqis tseem ceeb. Qhov nruab nrab loj ntawm ib mole ntawm H2O yog 18.02 grams. Qhov no tau hais: molar huab hwm coj ntawm dej yog 18.02 g / mol