The molar concentration of a sugar solution is 0.3m. This beaker is sitting on your desk in the open air. The solute potential at 27 c will be 7.48.
The solute potential at 27 c- will be 7.48.
Concentration of the sugar solution, C = 0.3 M
Temperature, T = 27° C = 273 + 27 = 300 K
The solute potential is given as:
solute potential = - iCRT
i is the number of particles the particular molecule will make in water
i = 1 for sugar
R is the universal gas constant = 0.0831 liter bar/mole-K
on substituting the respective values, we get
solute potential = - 1 × 0.3 × 0.0831 × 300
or
The solute potential = - 7.479 ≈ - 7.48
The solute potential is equal to the water potential when no physical pressure is applied to a solution. A solution's water potential, or the ability for the water to flow and perform work, will change if physical pressure is applied to it.
Solute potential is the degree to which the water potential decreases as a result of the dissolution of a solute. When a solute is dissolved in water, fewer free water molecules are present, which lowers the molecules' kinetic energy. As a result, the solute potential decreases.
Learn more about solute potential:
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