Dab tsi yog qhov ntom ntawm dej vapor hauv g mL?
Dab tsi yog qhov ntom ntawm dej vapor hauv g mL?

Video: Dab tsi yog qhov ntom ntawm dej vapor hauv g mL?

Video: Dab tsi yog qhov ntom ntawm dej vapor hauv g mL?
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Cov ceev ua kua dej yog kwv yees li 1.0 g / mL . Daim duab ntawm txoj cai muab rau ceev hauv kg/m3. Faib los ntawm 103 kom tau ceev hauv g / mL.

Tsis tas li ntawd, qhov ceev ntawm dej vapor yog dab tsi?

Dej ceev ntawm li 4 degree Celsius yog 1000kg / m3 siab tshaj 100 degrees Celsius nws dhau los ntawm 958 kg / m3 yog li ntawd txhais tau tias nws yog vapor . Tab sis kuv tau hais tias tus dej vapor ceev yog 0.554kg/m3.

Qhov thib ob, qhov ceev ntawm dej hauv g mL ntawm 25 degrees Celsius yog dab tsi? Cov ceev ntawm ntshiab dej ntawm 25 degrees Celsius yog 0,997 g / mL . Xav txog dej Raws li yog ob qho tib si hnyav thiab solute, xam nws molality, moles ntawm solute ib kilogram ntawm hnyav ntawm 25 degrees Celsius.

Dhau li ntawm qhov no, qhov ceev ntawm cov dej vapor ntawm STP yog dab tsi?

Thaum sib npaug kub nws yog buoyant nrog rau cov huab cua qhuav, uas yog qhov ceev huab cua qhuav ntawm tus qauv kub thiab siab (273.15 K, 101.325 kPa) yog 1.27 g / L thiab dej vapor ntawm tus qauv kub muaj a vapor siab ntawm 0.6 kPa thiab qis dua ceev 4.85 mg / L.

Dab tsi yog qhov hnyav ntawm cov dej dab tsi yog qhov hnyav ntawm cov dej?

Nws tsis yog coincidence uas dej muaj ib ceev ntawm 1. Qhov ntom yog pawg faib los ntawm ntim (ρ = m / v), thiab dej tau siv los ua lub hauv paus rau kev tsim cov metric chav tsev ntawm pawg , uas txhais tau hais tias ib cubic centimeter (1cm3) ntawm dej hnyav ib gram (1g). Yog li, 1 g / 1 cm3 = 1 g/cm3, muab dej nws yooj yim-rau-nco ceev.

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