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2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Ice floats tom qab nws crystallizes vim tias cov dej khov ua rau hauv lub tawb zoo li cov qauv uas nqus cua hauv lawv ua rau cov dej khov kom ntab saum dej.
Thaum twg dej khov pib ntab?
Txoj cai thaum dej khov rau cov dej khov, cov dej khov ua kom tsawg dua cov dej thiab tseem ntab rau ntawm lub pas dej. qis dua 4°C, dej yuav tsawg zuj zus vim nws txias dua, ua rau dej yuav khov kom ntab mus rau saum.
Vim li cas dej khov ntab tom qab nws crystallizes nws cov huab hwm coj ntau dua li dej nws qhov ntom ntom ntau dua li dej nws qhov ntom ntom tsawg dua cov dej cua hauv dej khov ua rau nws ntab?
Ice floats in liquid water vim nws qhov ntom ntom qis dua li cov kua dej. … Tsis tas li ntawd vim tias hydrogen bonds khaws cov dej molecules nyob deb sib nrug ntawm cov dej khov, ua rau cov dej khov tsawg dua.
Puas dej khov ib txwm ntab?
Ntseeg nws los tsis yog, dej khov tiag tiag li 9% tsawg dua dej. Txij li dej hnyav dua, nws hloov cov dej khov sib zog, ua rau dej khov ntws mus rau saum.
Cov lus teb twg zoo tshaj piav qhia vim li cas dej khov ntab?
Ice floats on dej vim nws ntom dua dej. Thaum dej khov rau hauv nws daim ntawv, nws cov molecules muaj peev xwm tsim cov hydrogen ruaj khov dua xauv lawv mus rau hauv txoj haujlwm. Vim tias cov molecules tsis txav, lawv tsis tuaj yeem tsim ntau li hydrogen bonds nrogLwm cov dej molecules.
Pom zoo:
Puas yog cov dej khov ntev ntev dua li cov dej khov nab kuab?
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Lwm qhov sib txawv loj ntawm glacials thiab interglacials yog cov kev hloov hauv dej hiav txwv. Thaum lub sij hawm glacial, cov dej hiav txwv poob qhov nruab nrab ntawm 100m raws li cov dej evaporated thiab khaws cia rau hauv cov glaciers loj hlob thiab cov ntawv dej khov.
Vim li cas cov dej khov nab kuab ntab saum dej?
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Dab tsi yog qhov tshwj xeeb ntawm cov dej khov ua rau nws ntab? Ntseeg nws los tsis yog, dej khov tiag tiag li 9% tsawg dua li dej. Txij li cov dej hnyav dua, nws hloov cov dej khov sib zog, ua rau cov dej khov ntws mus rau saum. Vim li cas dej khov ntab saum dej hoob 9?
Puas khov tsis muaj dej khov khov?
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Lub kaw-off valve ua haujlwm hauv qab kab te. Dej tsis tuaj yeem khov vim thaum nws kaw, tag nrho cov dej hauv cov kav dej tso tawm ib lub qhov hauv lub valve uas tau teem rau hauv av hauv qab kab te. Can Frost-free faucets freeze? Ib lub faucet tsis muaj dej khov yog tsim lostiv thaiv dej los ntawm khov hauv cov yeeb nkab lossis lub valve thiab ua rau nws puas.
Qhov twg yog dej khov lossis dej khov?
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Dej khov tsawg dua dej Qhov no yog vim dej khov qhov ntom ntom tsawg dua li cov dej ntom ntom. Thaum khov, qhov ntom ntawm cov dej khov txo qis li ntawm 9 feem pua. Vim li cas dej thiaj ntom dua dej khov? "cov khoom" (molecules) hauv dej yog ntim nruj dua li hauv dej khov, yog li dej muaj qhov ntom ntom dua li dej khov.
Yuav khov dej qab zib puas poob nws cov carbonation?
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Tab sis kuv kuj tsis nco qab lawm, yog li ntawd nws tshwm sim ob peb zaug uas cov cola tau khov. Thaum qhov no tshwm sim rau cov kua txiv hmab txiv ntoo, nws tsis muaj teeb meem, tab sis cola poob cov carbon dioxide yaj tom qab khov. Ib yam li ntawd kuj tshwm sim ntau zaus thaum lub caij nplooj zeeg thaum thawj qhov Frost tawm tsam peb lub sam thiaj cia, khov txhua yam uas nyob ntawm lub sam thiaj.