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Chemistry · PYQ NEET UG 2024
हिन्दीThe plot of osmotic pressure (\( \Pi \)) vs concentration (\( \text{mol L}^{-1} \)) for a solution gives a straight line with slope \( 25.73 \text{ L bar mol}^{-1} \). The temperature at which the osmotic pressure measurement is done is:\n(Use \( R = 0.083 \text{ L bar mol}^{-1}\text{ K}^{-1} \))
Correct answer · Option 3
37°C
Explanation
Since \( \Pi = CRT \), the slope is \( RT = 25.73 \). Therefore, \( T = \frac{25.73}{0.083} \approx 310 \text{ K} \), which corresponds to \( 310 - 273 = 37^\circ\text{C} \).
