1. 12.05 ^° C 2. 37 ^° C 3. 310 ^° C 4. 25.73 ^° C

Answer: 2. 37 ^° C Key idea: Π=CRT , so the slope of Π vs C is RT . T=25.73/0.083=310\ K=37^°C Option 2. (310 is in kelvin, not ^° C, so option 3 is wrong.)

Topic: Colligative properties· Solutions

The plot of osmotic pressure () vs concentration (mol L^-1) for a solution gives a straight line with slope 25.73 L bar mol^-1. The temperature at which the osmotic pressure measurement is done is:(Use R = 0.083 L bar mol^-1 K^-1)

1. 12.05$^\circ$C

2. 37$^\circ$C

3. 310$^\circ$C

4. 25.73$^\circ$C

Doubtly Asked 30 Oct 2026 NEET UG 2024 Practice test neet Save WhatsApp Report

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Answer: 2. 37$^\circ$C

Key idea: $\Pi=CRT$, so the slope of $\Pi$ vs $C$ is $RT$.

$$T=\frac{25.73}{0.083}=310\ \mathrm{K}=37^\circ\mathrm{C}$$

Option 2. (310 is in kelvin, not $^\circ$C, so option 3 is wrong.)

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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The plot of osmotic pressure () vs concentration (mol L^-1) for a solution gives a straight line with slope 25.73 L bar mol^-1. The temperature at which the osmotic pressure measurement is done is:(Use R = 0.083 L bar mol^-1 K^-1)

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