Video: Koj ua si twv seb qhov kev sib raug zoo li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Tus tsim tawm: Omar Wagih
Ib yam li ntawd, koj yuav nrhiav kev sib raug zoo li cas?
Kauj ruam 1: Nrhiav lub ntsiab lus ntawm x, thiab lub ntsiab lus ntawm y. Kauj Ruam 2: Tshem tawm qhov nruab nrab ntawm x ntawm txhua tus nqi x (hu rau lawv "a"), ua tib yam rau y (hu rau lawv "b") Kauj Ruam 3: xam: ab, a2 thiab b2 rau txhua tus nqi. Kauj ruam 4: Sum up ab, sum up a2 thiab sau b.
Ib yam li ntawd, qee qhov piv txwv ntawm kev sib raug zoo yog dab tsi? Ib piv txwv yuav qhov siab thiab qhov hnyav. Cov neeg siab dua yuav hnyav dua. Ib qho tsis zoo kev sib raug zoo yog kev sib raug zoo ntawm ob qhov sib txawv uas qhov nce ntawm ib qho kev sib txawv yog txuam nrog kev txo qis hauv tus lwm yam. Ib piv txwv yuav yog qhov siab tshaj hiav txwv theem thiab kub.
Ib yam li ntawd, kev sib txheeb txhais li cas?
Kev sib txheeb yog ib qho kev ntsuas ntsuas uas qhia txog qhov twg ob lossis ntau qhov sib txawv sib txawv ua ke. Ib tug zoo kev sib raug zoo qhia txog qhov uas cov kev hloov pauv no nce lossis txo qis hauv qhov sib npaug; ib tug tsis zoo kev sib raug zoo qhia txog qhov uas ib qho hloov pauv tau nce raws li qhov txo qis.
Koj yuav ua li cas thiaj paub tias qhov sib txheeb coefficient tseem ceeb?
Rau txiav txim seb cov kev sib raug zoo ntawm variables yog tseem ceeb , piv cov p-tus nqi rau koj qhov tseem ceeb qib. Feem ntau, a qhov tseem ceeb qib (cim li α lossis alpha) ntawm 0.05 ua haujlwm zoo. Ib qho α ntawm 0.05 qhia tias qhov kev pheej hmoo ntawm kev txiav txim siab tias a kev sib raug zoo muaj-thaum, qhov tseeb, tsis muaj kev sib raug zoo muaj - yog 5%.
Pom zoo:
Yuav ua li cas koj twv seb qhov kev tshwm sim yog endothermic los yog exothermic?
Yog hais tias lub zog theem ntawm cov reactants siab tshaj lub zog theem ntawm cov khoom, cov tshuaj tiv thaiv yog exothermic (lub zog tau raug tso tawm thaum lub sij hawm cov tshuaj tiv thaiv). Yog hais tias lub zog theem ntawm cov khoom yog siab tshaj lub zog theem ntawm cov reactants nws yog ib tug endothermic cov tshuaj tiv thaiv
Nws txhais li cas thaum kev sib raug zoo ntawm kev sib raug zoo ua kev cuam tshuam?
Kev sib raug zoo ntawm ob tus neeg uas txhua tus neeg nyob ntawm thiab tau txais kev txhawb zog, txawm tias muaj txiaj ntsig lossis kev puas tsuaj, los ntawm lwm tus. ib qho kev sib cuam tshuam lossis kev sib raug zoo ntawm ob tus neeg, pab pawg, thiab lwm yam
Dab tsi yog qhov kev sib raug zoo ntawm kev ua lej ntawm qhov kev nyuaj siab khov kho thiab Mollality?
Kev nyuaj siab qhov chaw khov kho yog cov cuab yeej sib koom ua ke pom hauv cov kev daws teeb meem uas tshwm sim los ntawm kev qhia txog cov kuab tshuaj molecules rau cov kuab tshuaj. Cov ntsiab lus khov ntawm cov kev daws yog tag nrho qis dua li cov kuab tshuaj ntshiab thiab yog ncaj qha proportional rau molality ntawm cov kuab tshuaj
Yuav ua li cas txiav txim siab seb qhov kev sib txawv yog qhov zoo?
Qhov kev hloov pauv tuaj yeem muaj nyob rau hauv cov pej xeem, tab sis feem ntau qhov kev hloov pauv los ntawm kev hloov pauv, lossis kev hloov pauv hloov pauv hauv lub cev cov noob. Cov kab mob uas muaj sia nyob dhau qhov zoo li no rau lawv cov xeeb ntxwv
Koj yuav ua li cas thiaj paub tias kev sib raug zoo yog qhov zoo lossis tsis zoo?
Qhov zoo correlation coefficient txhais tau hais tias raws li tus nqi ntawm ib qho kev sib txawv nce, tus nqi ntawm lwm qhov sib txawv nce; raws li ib tug txo qhov qis dua. Qhov tsis zoo correlation coefficient qhia tau hais tias raws li ib qho kev sib txawv nce, qhov txo qis, thiab vice-versa