At a certain temperature, the value of the slope of the plot of osmotic pressure [n) against concentration (C in\[\text{mol}\,{{\text{L}}^{-1}}\]) of a certain polymer solution is 291R. The temperature at which osmotic pressure is measured, is (R is gas constant)
A)\[271{{\,}^{o}}C\]
B)\[18{{\,}^{o}}C\]
C) 564 K
D) 18 K
Correct Answer:
B
Solution :
Slope, \[RT=291\,R\]or \[T=291\,K\] \[\therefore \] Temperature \[=291-273=18{{\,}^{o}}C\]