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प्रश्न
What happens when the external pressure applied becomes more than the osmotic pressure of solution?
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उत्तर
When the external pressure exerted on the solution is higher than the osmotic pressure, the pure solvent starts flowing out of the solution through the semi-permeable membrane. This process is known as reverse-osmosis.
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संबंधित प्रश्न
A solution containing 15 g urea (molar mass = 60 g mol–1) per litre of solution in water has the same osmotic pressure (isotonic) as a solution of glucose (molar mass = 180 g mol–1) in water. Calculate the mass of glucose present in one litre of its solution.
Define Semipermeable membrane
Choose the most correct option.
In calculating osmotic pressure the concentration of solute is expressed in _______.
Answer the following in one or two sentences.
A solution concentration is expressed in molarity and not in molality while considering osmotic pressure. Why?
Answer the following.
Explain reverse osmosis.
What are hypertonic solutions?
Match the items given in Column I and Column II.
| Column I | Column II |
| (i) Saturated solution | (a) Solution having same osmotic pressure at a given temperature as that of given solution. |
| (ii) Binary solution | (b) A solution whose osmotic pressure is less than that of another. |
| (iii) Isotonic solution | (c) Solution with two components. |
| (iv) Hypotonic solution | (d) A solution which contains maximum amount of solute that can be dissolved in a given amount of solvent at a given temperature. |
| (v) Solid solution | (e) A solution whose osmotic pressure is more than that of another. |
| (vi) Hypertonic solution | (f) A solution in solid phase. |
Osmotic pressure of a solution increases if
Which one of the following is a colligative property?
Isotonic solutions are the solutions having the same ______.
