Q. The average osmotic pressure of human blood is 7.8 bar at $37℃$. What is the concentration of an aqueous NaCl solution that could be used in the blood steam?
A) 0.16 mol/L
B) 0.31 mol/L
C) 0.60 mol/L
D) 0.45 mol/L
Explanation
(b)
$\pi = CRT\ :C = \frac{\pi}{RT} = \frac{7.8}{0.0821 \times 310} = 0.31\ mol/L$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.