Download OU B.Pharma 3-1 Year 2017 4225 Physical Pharmacy I Question Paper

Download OU (Osmania University) B.Pharma 3-1 (3rd Year 1st Sem) (Bachelor of Pharmacy) 2017 4225 Physical Pharmacy I Previous Question Paper

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Code No. 4225
FACULTY
B. Pharmacy 3/4 I Semester (Suppl.) Examination, April 2017
Subject : Physical Pharmacy I
Time : 3 Hrs Max. Marks: 70
Note: Answer all questions. All questions carry equal marks.
1 (a) State and explain ibbs phase rule. Explain the phase diaram for one component
system. (9)
(b) Write abt differential scannin calorimetry and its applications in pharmacy. (5)
OR
(c) Discuss abt polymorphism and its applications in pharmacy. (7)
(d) State the postulates of kinetic molecular theory of ases and explain Vander Walls
equation for real ases. (7)
2 (a) State and explain law of conservation of enery. (5)
(b) Derive expressions for isothermal reversible expansion of an ideal as and
maximum work done in reversible expansion. (5)
(c) Write a note on ibbs free enery. (4)
OR
(d) Explain specific heat, sensible heat and latent heat. (6)
(e) Define free enery. Write abt free enery function and its applications. (8)
3 (a) What are colliative properties? Explain determination of freezin point depression
and its application. (8)
(b) Explain the importance of activity and activity coefficients. (6)
OR
(c) Define molarity, molality and normality. Explain in which situations these
expressions are useful. (4)
(d) Derive the equation for ionization of a weak acid and write abt ampholytes. (6+4)
4 (a) Derive Henderson Hassel balch buffer equation for a weak acid and its salt. (7)
(b) Write a note on pharmaceutical and physioloical buffers. (7)
OR
(c) What is buffer capacity? Write the equations for buffer capacity and maximum buffer
capacity. (4)
(d) What is isotonicity? What are the varis methods of adjustin isotonicity. A solution
contains 1.0 cphedrine sulphate in 100ml. What quantity of sodium chloride must
be added to make the solution isotonic (sodium chloride equivalent of ephedrine
sulphate is 0.23).. (1+5+4)
5 (a) Discuss the construction and workin of a lass membrane electrode. (7)
(b) Write abt the method of determinin the emf of a cell usin potentiometer. (7)
OR
(c) Mention varis types of electrodes with exampl es includin the cell reaction
representation. (7)
(d) Write abt the importance of applications of oxidation reductions in pharmacy. (7)
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