Arrange the following solutions according to | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Osmotic pressure $(\pi)$ is given by the formula $\pi = iCRT$,where $i$ is the van't Hoff factor,$C$ is the molar concentration,$R$ is the gas con

Vedclass · Accepted Answer

$D > B > A > C$

Vedclass · Answer

(A) Osmotic pressure $(\pi)$ is given by the formula $\pi = iCRT$,where $i$ is the van't Hoff factor,$C$ is the molar concentration,$R$ is the gas constant,and $T$ is the temperature.Since $R$ and $T$ are constant,$\pi \propto i 	imes C$.For complete dissociation:$A. 0.2 \ m \ KCl: i = 2, C = 0.2, \pi \propto 2 	imes 0.2 = 0.4$$B. 0.3 \ m \ MgSO_4: i = 2, C = 0.3, \pi \propto 2 	imes 0.3 = 0.6$$C. 0.1 \ m \ BaCl_2: i = 3, C = 0.1, \pi \propto 3 	imes 0.1 = 0.3$$D. 0.5 \ m \ Al_2(SO_4)_3: i = 5, C = 0.5, \pi \propto 5 	imes 0.5 = 2.5$Comparing the values: $2.5 (D) > 0.6 (B) > 0.4 (A) > 0.3 (C)$.Thus,the decreasing order is $D > B > A > C$.

Arrange the following solutions according to decreasing order of osmotic pressure under similar conditions of temperature,assuming complete dissociation:
$A. 0.2 \ m \ KCl$
$B. 0.3 \ m \ MgSO_4$
$C. 0.1 \ m \ BaCl_2$
$D. 0.5 \ m \ Al_2(SO_4)_3$

Similar Questions

$A$ solution of $8 \ g$ of a certain organic compound in $2 \ dm^3$ of water develops an osmotic pressure of $0.6 \ atm$ at $300 \ K$. Calculate the molar mass of the compound. $\left[R = 0.082 \ atm \ dm^3 \ K^{-1} \ mol^{-1}\right]$

Calculate the osmotic pressure of a $0.2 \ M$ aqueous solution of an electrolyte at $300 \ K$. If the van't Hoff factor is $1.6$,find the osmotic pressure. $\left[R=0.0821 \ atm \ dm^3 \ K^{-1} \ mol^{-1}\right]$ (in $atm$)

The osmotic pressure of a solution is given by the relation

Osmotic pressure of a solution containing $0.1 \ mol$ of solute per litre at $273 \ K$ is (in $atm$):

Which of the following conditions is correct for reverse osmosis? [$C =$ Concentration of solution in $mol \ L^{-1}$; $T =$ Temperature in Kelvin scale; $P_{ext} =$ External pressure; $\pi = CRT =$ Osmotic pressure]

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Arrange the following solutions according to decreasing order of osmotic pressure under similar conditions of temperature,assuming complete dissociation:$A. 0.2 \ m \ KCl$$B. 0.3 \ m \ MgSO_4$$C. 0.1 \ m \ BaCl_2$$D. 0.5 \ m \ Al_2(SO_4)_3$