DBATU B.Tech Last 10 Years 2010-2020 Question Papers || Dr. Babasaheb Ambedkar Technological University
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Code No. 7219
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FACULTY OF PHARMACY
B. Pharmacy 3/4 Year I-Semester (Main) Examination, November 2013
Subject : Physical Pharmacy - |
Time: 3 Hours Max.Marks: 70
Note: Answer all questions. All questions carry equal marks.
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- (a) Explain the methods to achieve liquefication of gases. 6
(b) Define refractive index. What is molar refraction? 4
(c) Write about liquid crystalline state and its applications. 4
OR
(d) What is polymorphism? Explain its applications giving suitable examples. 8--- Content provided by FirstRanker.com ---
(e) Write the principle and applications of differential scanning calorimetry. 6 - (a) State second law of thermodynamics. How do you calculate efficiency of steam engine? 8
(b) Define and explain enthalpy and entropy. 6
OR
(c) State and explain Hess’s law of constant heat summation. 7--- Content provided by FirstRanker.com ---
(d) Define free energy. Write about free energy functions and its applications. 7 - (a) Define Raoults law. Explain deviations from Raoults law. 7
(b) Explain the concept of activity and activity coefficients. 7
OR
(c) What are colligative properties? How do you determine freezing point depression? 7--- Content provided by FirstRanker.com ---
(d) Derive the equation for ionization of a weak acid. 4
(e) Write about Sorenson’s pH scale. 3 - (a) Explain class II methods for calculation of isotonicity. 8
(b) What is common ion effect? Derive buffer equation for a weak acid. 6
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(c) How do you prepare pharmaceutical buffer? Give examples. 7
(d) Write the equations for buffer capacity and maximum buffer capacity and explain the terms therein. 4
(e) Write a note on physiological buffers. 3 - (a) Explain different types of electrodes. 10
(b) Write Nernst equation and explain the terms therein. 4--- Content provided by FirstRanker.com ---
OR
(c) How do you measure pH using glass electrode. 7
(d) Explain ion sensitive electrodes. 7
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