BITSAT2024ChemistrySolutionsActual
A decimolar solution potassium ferrocyanide is 50 % dissociated at 300 K . The osmotic pressure of solution is (R=8.314 JK ⁻¹ ~mol ⁻¹ )
Options
- A7.48 atm
- B4.99 atm
- C3.74 atm
- D6.23 atm
Correct answer
A. 7.48 atm
Step-by-step solution
=0.5 (50 % dissociated) The reaction involves is Total moles at equilibrium =1- +4 + Total =1+4 van't Hoff factor (i)= 1+4 1 =1+4 0.5=3 Osmotic pressure, =i C R T aligned C & =0.1 M =10^2 ~mol ~m ⁻³ & =3 10^2 8.314 300 & =7.483 10^5 Nm ⁻² aligned or =7.48 ~atm