Video: Qhov hluav taws xob conductivity ntawm kev daws yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kev coj ua hauv dej kev daws teeb meem , yog ib qho kev ntsuas ntawm lub peev xwm ntawm dej los ua ib qho hluav taws xob tam sim no. Qhov ntau ions muaj nyob rau hauv daws , siab dua nws conductivity . Thiab qhov ntau ions muaj nyob rau hauv daws , lub zog ntawm electrolyte.
Ntawm no, dab tsi yog conductivity ntawm kev daws?
Kev coj ua (los yog tej yam conductance) ntawm ib tug electrolyte daws yog qhov ntsuas ntawm nws lub peev xwm ua hluav taws xob. SI unit of conductivity Siemens ib 'meter' (S / m).
Ib sab saum toj no, qhov kev daws teeb meem twg muaj hluav taws xob zoo tshaj plaws? Nrog NaCl (ntsev), peb tuaj yeem ua cov dej daws ntawm conductivity ntawm 20 S / m.
Tsuas yog li ntawd, koj yuav ua li cas xam cov hluav taws xob conductivity ntawm kev daws teeb meem?
Rau xam tus conductivity ntawm ib tug tov koj tsuas muab cov concentration ntawm txhua ion nyob rau hauv daws ntawm nws molar conductivity thiab them ces ntxiv cov nqi no rau tag nrho cov ions hauv daws.
Qhov hluav taws xob conductivity ntawm dej yog dab tsi?
EC lub Hluav taws xob conductivity ntawm dej yog nws lub peev xwm los ua ib qho hluav taws xob tam sim no. Cov ntsev los yog lwm yam tshuaj uas yaj hauv dej tuaj yeem tawg mus rau hauv qhov zoo thiab tsis zoo them ions. Salinity thiab tag nrho yaj yaj (TDS) yog siv los xam EC ntawm dej , uas pab qhia cov cov dej kev huv.
Pom zoo:
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