AP EAMCET201726 Apr 2017Morning ShiftChemistrySolutionsActual
Which one of the following solutions of compounds show highest osmotic pressure? (A B, A B₂ . and A₂ B₃ are ionic compounds)
Options
- A5.0 M urea i=1.0 and temperature is 67^ C
- B1.5 M A₂ B₃ type i=4.1 and temperature is 27^ C
- C3.0 M A B type i=1.6 and temperature is 27^ C
- D2.5 M AB B₂ type i=2.5 and temperature is 57^ C
Correct answer
D. 2.5 M AB B₂ type i=2.5 and temperature is 57^ C
Step-by-step solution
=i C R T . (a) for 5.0 M urea is =1 5 0.0821 340 ~K =139.57 ~atm (b) for 1.5 M A₂ B₃ type is (i=4) =4.1 1.5 0.0821 300 ~K =151.47 ~atm (c) for 3.0 M A B type is (i=1.6) =1.6 3 0.0821 300 ~K =118.22 ~atm (d) for 2.5 M A B₂ type is (i=2.5) =2.5 2.5 0.0821 330 ~K =169.33 ~atm Hence A B₂ highest osmotic pressure at 57^ C shows.