________ Rule is often used to compare a pure liquid and a solution at a given concentration.

Duhring‚Äö√Ñ√∂‚àö√ë‚àö¬•s rule

________ Rule is often used to compare a pure liquid and a solution at

1.	________ Rule is often used to compare a pure liquid and a solution at a given concentration.
A.	Duhring‚Äö√Ñ√∂‚àö√ë‚àö¬•s rule
B.	Plank rule
C.	Friction rule
D.	Doppler rule
Answer» B. Plank rule