Video: Puas yog helium hauv lub zais pa sib xyaw?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Nws yog ib qho tsis muaj xim, tsis muaj ntxhiab thiab tsis muaj zog. Nws tsuas yog cov pa roj sib zog dua huab cua tshwj tsis yog cov hydrogen - uas yog cov nplaim taws heev. Balloon gas ib sib tov ntawm qhov tseem ceeb helium thiab ib co atmospheric gases. Nws yog ib yam khoom los ntawm cov helium gas kev lag luam thiab siv tsis tau hauv science thiab kev kawm ntawv.
Hais txog qhov no, puas yog huab cua hauv lub zais pa sib xyaw?
Cov tshuaj tuaj yeem ua homogeneous. Piv txwv ntawm homogeneous compounds yog: carbon dioxide nyob rau hauv a balloon , dej hauv lub raj mis, los yog yas ua lub qhov hluav taws xob. Cov khoom xyaw tuaj yeem ua homogeneous. Piv txwv ntawm homogeneous sib tov yog: cua hauv a balloon , ntsev dej nyob rau hauv ib lub raj mis, los yog tooj dag nyob rau hauv ib tug ingot.
Kuj Paub, yog Helium yog metalloid? Helium yog ib qho tsis muaj hlau. Nws yog lub ntsiab thib ob ntawm lub rooj sib tham, tom qab hydrogen, thiab yog ib feem ntawm cov pab pawg neeg muaj zog heev. Qhov tseem ceeb, nws muaj cov ntsiab lus kub thiab melting qis tshaj plaws ntawm tag nrho cov ntsiab lus, uas yog vim li cas nws yuav luag ib txwm pom raws li cov pa roj.
Kuj paub, pes tsawg feem pua ntawm helium siv hauv balloons?
7 feem pua
Puas yog balloon gas ntshiab helium?
Balloon gas feem ntau muaj thoob ntiaj teb kev huv ntawm 95% helium , nrog tsawg kawg yog 92% helium cov ntsiab lus xav tau los xyuas kom meej qhov balloon ntab. Wb tsis txhob hnov qab tias tus balloon kev lag luam tsuas yog ib daim ntawv thov thiab ua kom tsawg dua 10% ntawm thoob ntiaj teb helium ua lag luam, muaj li no ob peb lwm yam kev siv uas siv helium.
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