NEET 2024 · ChemistryPrevious Year Question
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 L bar mol⁻¹ K⁻¹)
Answer: (D) 37 °C. \textbf{Answer:} (D) 37 °C \textbf{Solution:} The osmotic pressure equation is .
- A.310 °C
- B.25.73 °C
- C.12.05 °C
- D.37 °C✓
Correct Answer
(D) 37 °C
Solution & Explanation
\textbf{Answer:} (D) 37 °C \textbf{Solution:} The osmotic pressure equation is . Plotting against concentration gives a straight line whose slope is . So L bar mol⁻¹. K. Converting to Celsius: °C. (The distractor 310 °C is the Kelvin value mislabelled as °C.)
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