If M, W and V represent molar mass of solute, mass of solute and volume of solution in litres respectively, which among following equations is true ?

Question

If M, W and V represent molar mass of solute, mass of solute and volume of solution in litres respectively, which among following equations is true ? (A) π=(MWR/TV) (B) π=(TMR/WV) (C) π=(TWR/VM) (D) π=(TRV/WM)

Tardigrade Admin · Accepted Answer

We have the relation between osmotic pressure and molecular mass as, π=C R T ; where, π= osmotic pressure C= concentration π=(n/V) R T ⇒ π=(M/V) × R T ⇒ π=(T W R/M V)

Q. If $M$ , $W$ and $V$ represent molar mass of solute, mass of solute and volume of solution in litres respectively, which among following equations is true ?

$π = \frac{M W R}{T V}$

$π = \frac{TMR}{WV}$

$π = \frac{T W R}{V M}$

$π = \frac{TR V}{W M}$

We have the relation between osmotic pressure and molecular mass as,

$π = CRT;$ where, $π =$ osmotic pressure

$C =$ concentration

$π = \frac{n}{V} RT$

$\Rightarrow π = \frac{M}{V} \times RT$

$\Rightarrow π = \frac{T W R}{M V}$

Q. If M, W and V represent molar mass of solute, mass of solute and volume of solution in litres respectively, which among following equations is true ?

π=TVMWR​

π=WVTMR​

π=VMTWR​

π=WMTRV​