Thaum cov noob siv lead ua ntawm sodium acetate triacetate ntxiv , sodium acetate trihydrate crystallizes tawm. Cov cua sov ntawm cov kua kub ntawm cov tshuaj The enthalpy of solution, enthalpy of dissolution, or heat of solution is the enthalpy change related with the dissolution of a substance in a solvent at tas li pressure uas ua rau infinite dilution. Cov enthalpy ntawm cov tshuaj feem ntau qhia nyob rau hauv kJ / mol ntawmqhov kub thiab txias. https://en.wikipedia.org › wiki › Enthalpy_change_of_solution
Enthalpy hloov kev daws teeb meem - Wikipedia
ntawm sodium acetate trihydrate yog 19.7 kJ / mole (tus txheej txheem endothermic endothermic txheej txheem Ib txheej txheem endothermic yog txhua yam txheej txheem nrog nce hauv enthalpy H (los yog lub zog sab hauv U) ntawm lub cev. … Qhov txawv ntawm cov txheej txheem endothermic yog cov txheej txheem exothermic, ib qho uas tso tawm lossis "muab tawm" lub zog, feem ntau yog ua kom sov thiab qee zaum ua hluav taws xob. https://en.wikipedia.org › wiki › Endothermic_process
txheej txheem Endothermic - Wikipedia
). Lub crystallization yog exothermic.
YPuas sodium acetate crystallize?
Ib lub noob siv lead ua tuaj yeem muab tso rau hauv cov tshuaj saturated sodium acetate. Lub daws yuav dheev crystallize thiab tig mus rau khov. … Cov tshuaj yuav crystallize thaum nws kov cov siv lead ua, uas ua rau muaj ntau ntau siab ntawm sodium acetate.
Ibcrystallization ntawm sodium acetate spontaneous?
Crystalization ntawm sodium acetate los ntawm cov tshuaj supersaturated tshwm sim nyob ntawm tus kheej (saib nplooj 509).
Vim li cas sodium acetate hauv cov tshuaj hloov pauv mus rau cov khoom thaum nws nchuav rau saum cov sodium acetate crystals?
3H2O. "Cov noob" cov tshuaj nrog cov trihydrateyog li ua rau tsim cov muaju ntawm hydrated sodium acetate. Crystallization yog exothermic, thiab cov khoom tshwm sim yog sov rau qhov kov.
Yuav ua li cas thaum koj tso sodium acetate hauv dej?
Piv txwv li, thaum sodium acetate yaj hauv dej nws nkag mus rau hauv sodium thiab acetate ions. … Cov txiaj ntsig ntawm cov tshuaj tiv thaiv no yog qhov txheeb ze tshaj ntawm hydroxyl ions, ua rau cov tshuaj alkaline. Cov tshuaj tiv thaiv tshuaj tau tshwm sim ntawm cov dej thiab cov ntsev yaj.
