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Which one of the following statements is incorrect?A. Osmotic pressure is directly proportional to the temperature of the solutionB. Osmotic pressure is the pressure applied on the solution to prevent the entry of the solvent into it through the semipermeable membrane.C. Osmotic pressure is the hydrostatic pressure of the liquid column set up due to osmosis.D. During osmosis, the flow of solvent is only form dilute solution to concentrated solution. |
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Answer» Correct Answer - 4 Certain materials, including those that make up the membranes around living cells, are semipermeable. That is, they allow `H_(2)O` or other small molecules to pass through, but they block the passage of large solute molecules or ions. When a solution and a pure solvent (or two solutions of different concentration) are separated by the right kind of semipermeable membrane, solvent molecules pass through the membrane in a process called osmosis. Although the passage of solvent through the membrane takes place in both direction, passage from the pure solvent side to the solution side (or from the dilute solution side to more concentrated solution side) is more favored and occurs faster. As a result, the amount of liquid on the pure solvent side decreases, the amount of liquid on the solution side increases and the concentration of the solution decreases. |
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