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Osmotic pressure and U tube
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When a semipermeable membrane is placed at the bottom of a U-shaped tube and water is added, it can be observed that adding dissolved material causes the column with the solute to rise:
This phenomenon is due to the negative pressure generated by osmotic pressure.
ID:(2024, 0)
Presión Osmótica
Model
Variables
Symbol
Text
Variable
Value
Units
Calculate
MKS Value
MKS Units
$k_B$
k_B
Constante de Boltzmann
J/K
$R$
R
Constante de los gases
J/K mol
$g_0$
g_0
Energía libre molar de Gibbs
J
$g_{0h}$
g_0h
Energía libre molar de Gibbs solvente con presencia del soluto
J
$g_0$
g_0
Energía libre molar de Gibbs solvente sin soluto
J
$N_s$
N_s
Numero de partículas de soluto
-
$N$
N
Numero de partículas del solvente
-
$\Psi$
Psi
Presión de las partículas del soluto
Pa
$p$
p
Pressure
Pa
$T$
T
Temperature
K
$V$
V
Volumen
m^3
$v$
v
Volumen molar
m^3/mol
Calculations
First, select the equation: 
to 
,
then, select the variable: 
to 
to ,
then, select the variable:
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Symbol
Equation
Solved
Translated
Calculations
Symbol
Equation
Solved
Translated
Variable
Given
Calculate
Target :
Equation
To be used
Equations
Examples
When a semipermeable membrane is placed at the bottom of a U-shaped tube and water is added, it can be observed that adding dissolved material causes the column with the solute to rise:
This phenomenon is due to the negative pressure generated by osmotic pressure.
(ID 2024)
ID:(568, 0)