Qhov kub ntawm ib daim hlau zaum hauv dej npau npau yog dab tsi?
Qhov kub ntawm ib daim hlau zaum hauv dej npau npau yog dab tsi?

Video: Qhov kub ntawm ib daim hlau zaum hauv dej npau npau yog dab tsi?

Video: Qhov kub ntawm ib daim hlau zaum hauv dej npau npau yog dab tsi?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
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Ceeb toom qhov pib kub ntawm cov hlau (52.0 ° C). Qhov no yog ib qho txawv txav ntawm cov qauv hlau feem ntau yog rhuab los ntawm immersion nyob rau hauv boiling dej, ua rau ib txwm pib kub ntawm los yog ze. 100.0 ° C rau hlau.

Ib sab ntawm qhov no, yuav ua li cas thaum koj muab cov hlau kub tso rau hauv dej?

Yuav ua li cas thaum ib feem ntawm kub hlau poob rau hauv chav tsev kub dej . Lub sijhawm dhau los hlau yuav txias thiab dej yuav kub nce. Thaum kawg ob yam khoom yuav muaj qhov kub thiab txias. Lawv ces hais tias nyob rau hauv thermal equilibrium nrog ib leeg.

Tom qab ntawd, lo lus nug yog, yuav ua li cas tshwm sim thaum koj txias kub kub sai? Yog koj ceev heev txias ib hlau yaj, nws tsim ib lub iav hlau. Huag, tej zaum cov organic ib feem ntawm cov alloy yog super muaj zog thiab tiv thaiv nws los ntawm melting los ntawm tuav lub hlau hauv, txawm tias hlau yog ua tau nyob rau hauv cov kua.

Raws li txoj cai, Q MC _firxam_#8710 yog dab tsi; T siv rau?

Q = mc∆T . Q = tshav kub zog (Joules, J) m = loj ntawm ib yam khoom (kg) c = tshwj xeeb kub (units J / kg∙K) ∆ yog lub cim txhais tias "kev hloov hauv"

Yuav ua li cas yog ib qho thaiv ntawm cov hlau kub muab tso rau hauv ib khob dej txias?

Lub ntsuas kub ua kua nthuav dav thaum nws yog kub thiab ua me me thaum nws yog txias . Yog ib block yog ntawm hlau kub yog muab tso rau hauv ib khob dej txias , qhov kub ntawm lub hlau yuav txo, thiab qhov kub ntawm qhov dej yuav nce.

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