Video: Puas muaj cov cua sov tshwj xeeb?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Tshwj xeeb kub . Qhov tseeb, cov tshwj xeeb kub tus nqi ntawm cov khoom hloov pauv ntawm qib mus rau qib, tab sis peb yuav tsis quav ntsej qhov ntawd. Cov units Feem ntau yog Joules ib gram-degree Celsius (J / g ° C). Qee zaum cov chav tsev J/kg K kuj tseem siv tau.
Hauv qhov no, SI unit ntawm cov cua sov tshwj xeeb yog dab tsi?
joules ua
Tom qab, lo lus nug yog, dab tsi yog cov units rau qhov tshwj xeeb kub ntawm cov hlau? Qhov kom muaj nuj nqis ntawm tshav kub yog feem ntau ntsuas nyob rau hauv units ntawm Joules (J). Lwm cov cuab yeej, qhov tshwj xeeb cua sov, yog lub peev xwm kub ntawm cov khoom ib grams ntawm cov khoom. Qhov tshwj xeeb kub ntawm cov dej yog 4.18 J / g ° C. Kev daws rau qhov tshwj xeeb kub ntawm cov hlau uas poob hauv dej.
Hais txog qhov no, dab tsi yog cov units rau lub peev xwm ntawm cov cua sov thiab cov cua sov tshwj xeeb?
Joule rau kelvin
Dab tsi yog qhov tshwj xeeb cua sov nyob ntawm?
Qhov ntau yog lub npe hu ua tshwj xeeb kub muaj peev xwm (los yog yooj yim, lub tshwj xeeb kub ), uas yog kub muaj peev xwm rau ib chav tsev loj ntawm cov khoom. Cov kev sim qhia tau hais tias hloov pauv kub nyob ntawm peb yam: (1) Qhov kev hloov ntawm qhov kub thiab txias, (2) qhov loj ntawm lub cev, thiab (3) cov khoom thiab theem ntawm cov khoom.
Pom zoo:
Yam khoom twg yog qhov tshwj xeeb cua sov?
Lub peev xwm kub tshwj xeeb yog qhov kub ntawm lub zog yuav tsum tau nce qhov kub ntawm cov khoom hauv ib chav tsev ntawm qhov loj. Qhov tshwj xeeb kub muaj peev xwm ntawm cov khoom siv yog lub cev muaj zog. Nws kuj yog ib qho piv txwv ntawm cov cuab yeej uas nws kim heev vim nws tus nqi yog proportional rau qhov loj ntawm qhov system raug tshuaj xyuas
Puas yog txhua qhov ntxhia muaj nws cov khoom tshwj xeeb?
Txhua pob zeb muaj nws tus kheej cov khoom vim hais tias tag nrho cov minerals yog cov tebchaw. Ib qho ntxhia yeej ib txwm muaj qee cov ntsiab lus hauv qhov tseeb proportions. Txhua lub tebchaw muaj nws cov khoom uas feem ntau txawv ntawm cov khoom ntawm cov khoom uas tsim nws
Yuav ua li cas hloov Kelvin los ntawm Celsius mus rau cov cua sov tshwj xeeb?
Lub peev xwm kub tshwj xeeb yog qhov kub xav tau los nce qhov kub ntawm 1g ntawm cov khoom los ntawm 1 degree Celsius. 1 degree Celsius = 1 degree Kelvin. Thaum daws qhov muaj peev xwm kub hauv Kelvin, Kelvin = Celsius vim qhov kev ncua deb ntawm ib qib mus rau qib tom ntej hauv Celsius thiab Kelvin yog tib yam
Puas yog thauj cov protein tshwj xeeb?
Lub plasma membrane yog permeable rau cov khoom tshwj xeeb uas lub cell xav tau. Kev thauj cov proteins nyob rau hauv cellmembrane tso cai rau kev xaiv cov lus ntawm cov molecules tshwj xeeb los ntawm ib puag ncig sab nraud. Txhua qhov kev thauj cov protein yog tshwj xeeb rau cov certian molecule (qhia los ntawm cov xim sib xws)
Yuav ua li cas cov hlwb tshwj xeeb tsim los ua cov haujlwm tseem ceeb hauv ntau cov kab mob?
Multicellular kab mob ua lawv txoj kev ua neej los ntawm kev faib ua haujlwm. Lawv muaj cov hlwb tshwj xeeb uas ua haujlwm tshwj xeeb. Lub Colonial Theory qhia tias kev koom tes ntawm cov hlwb ntawm tib hom coj mus rau kev loj hlob ntawm cov kab mob multicellular