An artificial cell is made by encapsulating 0.2 M glucose solution within a semipermeable membrane. The osmotic pressure developed when the artificial cell is placed within a 0.05 M solution of NaCl at 300 K is ______ bar. (Nearest Integer)

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Solution

Q.
An artificial cell is made by encapsulating 0.2 M glucose solution within a semipermeable membrane. The osmotic pressure developed when the artificial cell is placed within a 0.05 M solution of NaCl at 300 K is ______ $\times 10^{- 1}$ bar. (Nearest Integer)

[Given: R = 0.083 L bar ${mol}^{- 1}$ $K^{- 1}$ ]

Assume complete dissociation of NaCl [2024]

Ans.
(25)

Osmotic pressure developed = Difference of osmotic pressure due to glucose solution difference of osmotic pressure due to NaCl solution.

$= C_{1} R T - i C_{2} R T$

$= 0.2 R T - 2 \times 0.05 R T$

$= 0.1 R T = 0.1 mol \times 0.083 \frac{bar L}{mol K} \times 300 K = 25 \times 10^{- 1} bar$

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