Download OU B.Pharma 3-1 Year 2018 13045 NON CBCS Physical Pharmacy I Question Paper

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B. Pharmacy III/IV I Semester (Non CBCS) (Backlog) Examination, November 2018

Subject: Physical Pharmacy I

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Time: 3 Hrs Max. Marks: 70

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

1. 1. State and explain ideal gas law and the Vander Waals equation for real gases. 5
   2. State and explain the methods for liquefaction of gases. 6
   3. Write a note on liquid crystalline state. 3

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   OR

   1. State Gibbs phase rule. Explain the phase diagram for two components system. 8
   2. Write the principle of thermal analysis. Explain Differential Scanning Calorimetry (DSC) with applications. 6
2. 1. State and explain first law of thermodynamics. 5

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   2. Derive an expression for maximum work done in isothermal reversible expansion of an ideal gas. 9

   OR

   1. Derive an expression to determine efficiency of steam engine. 6
   2. Define i) Heat of formation ii) Heat of combustion iii) Heat of Neutralization 8

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3. 1. What are colligative properties? Explain any one colligative property in determination of molecular weight. 9
   2. Write about Sorensen's pH scale and its applications. 5

   OR

   1. Explain the concepts of activity and activity coefficients. Write and explain the Debye Huckel theory and osmotic coefficient for determining activity coefficient.
   2. What are ideal solutions and real solution? Explain deviations of Raoult's law.

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4. 1. What is buffer? Derive the buffer equation to prepare an acidic buffer system. 8
   2. Write characteristics of buffers. Write applications of buffers in vivo biological buffer systems with examples. 6

   OR

   1. Explain various methods to adjust isotonicity and pH. 10

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   2. Write Van Slyke’s equation for buffer capacity and maximum buffer capacity and its applications. 4
5. 1. Write a note on different types of electrodes. Explain measurement of pH using Hydrogen electrode.
   2. How do you measure EMF of a cell?

   OR

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   1. Write a note on calomel electrode and hydrogen electrode.
   2. What is a catalysis and catalyst? Write types of catalysts, catalytic reactions. Write factors affecting on the catalysis.

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