Video: Koj tau txais QCAL li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
xam Qcal . Ntsuas qhov kev hloov ntawm qhov kub thiab txias nyob rau hauv degrees Celsius uas tshwm sim thaum lub sij hawm cov tshuaj tiv thaiv nyob rau hauv lub calorimeter. Multiply Ccal (zog / degree Celsius) los ntawm kev hloov pauv ntawm qhov kub thiab txias uas tshwm sim thaum cov tshuaj tiv thaiv hauv calorimeter.
Tib neeg kuj nug, yog QCAL zoo lossis tsis zoo?
Yog li, peb pom rau cov tshuaj tiv thaiv exothermic, ∆T yog zoo , ua qcal zoo thiab ∆H tsis zoo , ib yam li nws yuav tsum ua.
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"
Ib yam li ntawd, QCAL txhais li cas hauv chemistry?
paub qhov kub ( qcal ib ) mus rau hauv nws ntawm tus qauv tshuaj tiv thaiv.
Qsoln txhais li cas?
qsoln yog tus nqi ntawm lub zog pauv mus rau los yog los ntawm (los ntawm qhov no) kev daws teeb meem thiab. qcal ib yog tus nqi ntawm lub zog pauv mus rau lossis los ntawm (dua los ntawm qhov no) lub calorimeter.
Pom zoo:
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