2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cov tshuaj tiv thaiv huab cua tseem ceeb rau kev tshawb fawb forensic thiab tshwj xeeb rau kev tshawb nrhiav hluav taws thiab tawg. Thaum cov tshuaj tiv thaiv yuav tsum tau cua sov (tshwj tsis yog tsim nws) thiab ua rau kom txias nyob ib puag ncig, nws yog conversely hu ua endothermic. … Hluav taws kub yog ib qho tshuaj tiv thaiv exothermic uas tshwm sim sai dua.
Puas yog cov tshuaj tiv thaiv exothermic muaj txiaj ntsig?
Cov tshuaj tiv thaiv kab mob kub hnyiab tau muaj txiaj ntsig zoo vim lawv yog feem ntau yog siv los tsim hluav taws xob hluav taws xob, lossis siv hauv cov chaw lag luam kom ua tiav qee yam txheej txheem….
Vim li cas peb thiaj siv cov tshuaj tiv thaiv kab mob endothermic?
Endothermic reactions
Cov no yog cov tshuaj tiv thaiv uas noj lub zog los ntawm ib puag ncig (ie lub zog nkag mus rau cov tshuaj tiv thaiv, uas yuav pab koj nco txog lub npe endothermic). Lub zog feem ntau yog hloov pauv raws li lub zog cua sov, ua rau cov tshuaj tiv thaiv sib xyaw thiab nws ib puag ncig ua kom txias dua.
Ib qho piv txwv ntawm cov tshuaj tiv thaiv exothermic hauv lub neej txhua hnub yog dab tsi?
txhuam koj cov hniav, ntxuav koj cov plaub hau, thiab teeb koj lub qhov cub yog txhua yam piv txwv ntawm kev tawm tsam sab nraud. Nyeem ntawv kom paub txog kev sib txuas, nruab nrab, kev txhim kho corrosion, thiab dej-raws li exothermic tshua.
Yuav ua li cas yog 2 piv txwv ntawm exothermic tshua?
Ntawm no yog qee qhov piv txwv ntawm cov tshuaj tiv thaiv exothermic:
- Kev ua ib lub thawv dej khov. Ua cov dej khov nab kuab yog txheej txheem ntawm cov kua hloov nws lub xeev mus rau cov khoom. …
- daus tsim hauv huab. …
- Kub tswm ciab. …
- Xov tooj cua. …
- Kub qab zib. …
- Tsim cov ion khub. …
- Reaction ntawm Cov kua qaub thiab dej. …
- Dej thiab calcium chloride.
Pom zoo:
Cov tshuaj tiv thaiv puas muaj kev tiv thaiv?
Cov tshuaj tiv thaiv COVID-19 txhawb koj lub cev tiv thaiv kab mob li cas? Cov tshuaj tiv thaiv ua haujlwm los ntawm kev txhawb koj lub cev tiv thaiv kab mob los tsim cov tshuaj tiv thaiv, raws nraim li nws xav tau yog tias koj yog raug tus kab mob.
Cov tshuaj tiv thaiv dab tsi rau kev txhaj tshuaj tiv thaiv thib ob?
Cov tshuaj tiv thaiv COVID-19 thib ob yog dab tsi? Cov kev mob tshwm sim feem ntau tom qab koob thib ob yog qhov mob ntawm qhov chaw txhaj tshuaj (92.1% tshaj tawm tias nws kav ntev dua 2 teev); qaug zog (66.4%); mob lub cev lossis leeg nqaij (64.
Cov tshuaj tiv thaiv twg muaj txiaj ntsig los npaj alkylene dihalide?
Vicinal dihalides, cov tebchaw uas muaj halogens ntawm cov pa roj carbon monoxide, yog npaj los ntawm tawm tsam ntawm halogen thiab alkene. Qhov piv txwv yooj yim tshaj plaws yog cov tshuaj tiv thaiv ntawm ethylene thiab chlorine muab 1, 2-dichloroethane (ethylene dichloride).
Vim li cas cov tshuaj tiv thaiv combustion yog cov tshuaj tiv thaiv oxidation?
Kev sib xyaw ua ke ib txwm ua rau muaj oxygen lossis huab cua. … Hauv combustion cov tshuaj tiv thaiv oxygen yog ua ke nrog cov roj qhov chaw feem ntau carbon thiab hydrogen raws li ua rau carbon dioxide thiab dej thiab yog li qhov no yog cov tshuaj tiv thaiv oxidation.
Yuav ua li cas cov tshuaj tiv thaiv coagulants tiv thaiv cov ntshav txhaws?
Anticoagulants tseem hu ua ntshav thinners yog cov tshuaj uas siv los kho thiab tiv thaiv cov ntshav txhaws. Lawv cuam tshuam cov txheej txheem kev koom tes hauv kev tsim cov ntshav txhaws thiab ua haujlwm los ntawm kev tsom mus rau cov ntshav txhawsyam xws li thrombin, fibrin, thiab vitamin K.
