Iron vs Kub
Hlau thiab Kub yog ob lub hlau uas qhia ntau qhov sib txawv ntawm lawv thaum nws los txog rau lawv cov khoom. Hlau yog hlau nrog cov cim tshuaj Fe thaum kub yog hlau nrog lub cim Au. Hlau belongs rau thawj qhov kev hloov pauv. Kub kuj yog hlau hloov.
Ob leeg cov hlau sib txawv ntawm ib leeg raws li lawv tus lej atomic. Lub atomic tooj ntawm kub yog 79 whereas lub atomic tooj ntawm hlau yog 26.
Nws yog ib qho tseem ceeb kom paub tias hlau yog cov khoom siv ntau tshaj plaws nyob rau hauv lub hauv paus thiab sab nraud ntawm lub ntiaj teb ntiaj chaw. Nws yog qhov tseeb plaub feem ntau pom nyob rau hauv lub ntiaj teb crust. Kub ntawm qhov tod tes tshwm sim li nuggets los yog nplej ntawm pob zeb thiab nyob rau hauv alluvial deposits.
Kub yog cov hlau uas ci ntsa iab thiab mos. Nws yog lub npe hu rau nws malleability thiab ductility nyob rau hauv nws daim ntawv ntshiab. Ntawm qhov tod tes, hlau tsis yog malleable thiab ductile mus rau qhov zoo thaum piv rau kub. Ob qho tib si muaj nyob rau hauv cov khoom khov.
Hlau thiab kub sib txawv ntawm ib leeg raws li lawv qhov hnyav atomic. Cov hlau kub tau hais tias muaj tus qauv atomic hnyav ntawm 196.96 g mol. Ntawm qhov tod tes, tus qauv atomic hnyav ntawm hlau yog 55.845 g mol. Ob qho tib si hlau muaj qhov sib txawv ntawm qhov kub thiab txias. Kub tau hais tias muaj qhov kub ntawm 2856 degree Celsius thaum hlau hais tias muaj qhov kub ntawm 2862 degree Celsius.
Cov ntsiab lus melting ntawm ob lub hlau sib txawv hauv qhov kev txiav txim siab tias cov hlau ntawm cov hlau muaj qhov melting ntawm 1538 degree Celsius whereas lub melting point ntawm kub yog 1064.18 degree Celsius.
Hlau yog pheej yig dua kub. Cov xim ntawm kub yog daj thaum cov xim ntawm cov hlau tshiab tuaj hauv cov xim nyiaj. Ib qho ntawm qhov sib txawv tseem ceeb tshaj plaws ntawm kub thiab hlau yog hlau xeb thaum kub tsis xeb. Lwm qhov sib txawv tseem ceeb ntawm ob yog qhov kub tsis yog hlau nplaum nyob rau hauv qhov chaw thaum hlau yog hlau nplaum hauv qhov xwm txheej.
Hlau yog tshuaj lom neeg heev thaum kub yog tshuaj tsis muaj zog rau qhov teeb meem. Nws tsuas yog txhais tau hais tias kub resists tus neeg cov kua qaub tab sis nws tuaj yeem tawm tsam los ntawm cov kua qaub sib xyaw aqua regia. Cov sib tov yog hu ua li ntawd vim nws lub zog ntawm dissolving kub. Qhov ceev ntawm kub yog 19.03 grams ib cubic centimeter. Ntawm qhov tod tes, qhov ceev ntawm hlau yog 7.87 grams ib cubic centimeter.
Nws yog qhov nthuav kom nco ntsoov tias hlau yog qhov thib rau ntau tshaj nyob rau hauv tag nrho lub qab ntuj khwb. Kub ntawm qhov tod tes muaj tus nqi khaws cia zoo dua li hlau.
