Kev coj tus kheej (lossis kev coj ua tshwj xeeb) ntawm cov tshuaj electrolyte yog qhov ntsuas ntawm nws lub peev xwm ua hluav taws xob. SI units ntawm conductivity yog Siemens ib meter (S / m).
Lub tsev yog dab tsi rau kev coj ua tshwj xeeb?
Qhov kev coj ua tshwj xeeb yog siemen. Conductivity los yog conductance tshwj xeeb txhais tau tias yog cov cuab yeej ntawm cov khoom siv hluav taws xob los ntawm lawv. Nws yog reciprocal ntawm cov resistivity uas tawm tsam qhov ntws ntawm tam sim no. Chav tsev ntawm resistivity yog ohm-meter.
Dab tsi yog ntsuas hauv cov conductivity tshwj xeeb?
Kev coj tus kheej tshwj xeeb yog ntsuas tsis ncaj ntawm kev sib sau ua ke ntawm cov ions yaj hauv cov tshuaj, thiab txhais tau tias yog hluav taws xob conductance ntawm 1 cubic centimeter (cm³) ntawm kev daws ntawm 25 degrees Celsius (°C) (Hem, 1982).
Kev coj ua tshwj xeeb sau nws cov qauv thiab chav tsev yog dab tsi?
(i) Cov conductivity tshwj xeeb: Qhov tshwj xeeb conductivity ntawm cov tshuaj ntawm ib qho kev dilution yog qhov conductance ntawm ib cm cube ntawm cov tshuaj. Nws yog sawv cev los ntawm κ (kappa). Formula: κ=ρ1=A1×R1
SI unit of Kappa yog dab tsi?
units hauv cov qauv ntawm kappa. κ=mm2 × Ω κ=m1−2Ω−1. k=m−1Ω−1. Yog li SI units ntawm kev coj ua tshwj xeeb yog m−1Ω−1.
