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प्रश्न
At a given temperature, osmotic pressure of a concentrated solution of a substance ______.
विकल्प
is higher than that at a dilute solution.
is lower than that of a dilute solution.
is same as that of a dilute solution.
cannot be compared with osmotic pressure of dilute solution.
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उत्तर
At a given temperature, osmotic pressure of a concentrated solution of a substance is higher than that at a dilute solution..
Explanation:
`pi = CRT`
Where C is concentration of the solution. So, the higher the concentration of solution at given temperature the higher will be the osmotic pressure.
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संबंधित प्रश्न
What happens when the external pressure applied becomes more than the osmotic pressure of solution?
Define the following term:
isotonic solution
Define the following term:
Hypotonic solution
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.
A solvent and its solution containing a nonvolatile solute are separated by a semipermeable membrane. Does the flow of solvent occur in both directions? Comment giving a reason.
Answer the following.
The osmotic pressure of CaCl2 and urea solutions of the same concentration at the same temperature are respectively 0.605 atm and 0.245 atm, calculate van’t Hoff factor for CaCl2.
What are hypertonic solutions?
Isotonic solutions must have the same:
(i) solute
(ii) density
(iii) elevation in boiling point
(iv) depression in freezing point
In isotonic solutions:
(i) Solute and solvent both are same.
(ii) Osmotic pressure is same.
(iii) Solute and solvent may or may not be same.
(iv) Solute is always same solvent may be different.
Discuss biological and industrial importance of osmosis.
Which one of the following is a colligative property?
Blood cells retain their normal shape in solution which are
In Isotonic solution
Assertion (A) : Osmotic pressure is a colligative property.
Reason (R) : Osmotic pressure is proportional to the molality.
A solution containing 10 g glucose has osmotic pressure 3.84 atm. If 10 g more glucose is added to the same solution, what will be its osmotic pressure? (Temperature remains constant)
Name the four colligative properties that are oftently used for determination of molecular mass.
How will you determine molar mass of solute from osmotic pressure?
The 'X' g nonvolatile solute having molar mass 196 g mol-1 is dissolved in 3 dm³ water. Calculate the value of 'X' if resulting solution has osmotic pressure 0.8 atm at 300 К.
(R = 0.0821dm³ atm K-1 mol-1)
