Download OU B.Pharma 3-1 Year 2014 7219 S Physical Pharmacy I Question Paper

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Code No.7219/S

FACULTY OF PHARMACY

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B. Pharmacy 3/4 |- Semester (Supplementary) Examination, March 2014

Subject : Physical Pharmacy - |

Time : 3 hours Max. Marks : 70

Note : Answer all questions. All questions carry equal marks.

1. a) State Gibb’s phase rule. Explain the phase diagram of one component system.
   

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   b) What is polymorphism? Write its significance with suitable examples.
   OR
   c) i) Differential scanning calorimetry
   ii) Liquid crystalline state and its applications.
2. a) State and explain first law of thermodynamics.
   

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   b) Define and explain Hess’s law of constant summation. Write its applications.
   OR
   c) State and explain second law of thermodynamics.
   d) Explain free energy function and applications.
3. a) How do you measure osmotic pressure.
   

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   b) Explain activity and activity coefficient.
   OR
   c) State Raoult's law. Explain positive and negative deviations of Raoult’s law.
   d) What are colligative properties? Explain the choice of colligative properties in molecular weight determination.
4. a) Explain cryoscopic method and sodium chloride equivalent method for adjusting isotonicity.
   

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   b) Explain the influence of buffer-capacity and pH on tissue irritation.
   OR
   c) Derive buffer equation for a weak acid.
   d) Write Van Slyke’s equation for buffer capacity and maximum buffer capacity and it’s applications.
5. a) Write about :
   

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   i) Ion sensitive electrode
   ii) Measurement of pH using glass electrode
   OR
   b) Explain in detail different types of electrodes.
   c) Write the applications of redox potentials in pharmacy.

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