$\frac{(0.0205/1.86/0.01) - 1}{(2-1)} imes 100$

$\frac{(1.86 imes 0.01/0.0205) - 1}{(2-1)} imes 100$

$\frac{(0.0205/1.86/0.01)}{(2-1)} imes 100$

$\frac{(1.86 imes 0.01 imes 0.0205)}{(2-1)} imes 100$

From both sides of semipermeable membrane with unequal flow rates

From solution having lower concentration only

From solution having higher concentration only

From both sides of semipermeable membrane with equal flow rates