Question

For a solution, the plot of osmotic pressure (π) verses the concentration (e in mol L^-1 ) gives a straight line with slope 310 R where ‘R’ is the gas constant. The temperature at which osmotic pressure measured is …

(a) 310 x 0.082 K 

(b) 3 10°C 

(c) 37°C

(d) 310 / 20.082

Answer 1

(c) 37°C 

 π = CRT 

y = x(m) 

m = RT 

310 R = RT 

T = 310 K 

= 37°C