B Pharmacy 2nd Year – Annual
Physical Chemistry
BPH – 211
Time: Three Hours M. Marks : 80
Note: Attempt any five questions. All questions carry equal marks.
- (A) What is an ideal gas? Discuss the various causes for for deviation of real gases from ideal behaviour. (8)(B) Calculate the molar volume of an ideal gas at 127° C and 1 atm pressure. (4)(C) How does surface tension varies with temperature? Describe Eotvos Equation. (4)
- (A) Differentiate between crystalline and amorphous solids. Justify the statement that amorphous solids are liquids at all temperatures. (6)(B) Name various crystal systems with suitable examples. (5)(C) What do you mean by refractive index? How will you determine it experimentally? (5)
- (A) What are colligative properties? Discuss anyone in detail and its applications. (10)(B) Discuss the applications of Debye-Huckle theory in protein purification. (6)
- (A) State and explain the first law of thermodynamics. What do you understand by internal energy. (5)(B) Prove that for an adiabatic expansion of an ideal gas PVγ= constant. (5)(C) Explain the reversible work of isothermal expansion of an ideal gas is greater than that of adiabatic expansion. (5)
- (A) Give a detailed account on Carnot Cycle. (10)(B) Calculate the entropy change in a chemical reaction at any temperature.
- Write short notes on :(A) Law of Mass action and its importance (6)(B) Transition state Theory (5)(C) Donnan-Membrane Equilibrium (5)
- (A) What are consecutive, Parallel and opposing reactions? Give Examples. (6)(B) Discuss the methods to determine the rate and order of a reaction. (5)(C) Give a brief account of the characteristics of catalysed reactions. (5)
- (A) Differentiate between physiosorption and chemisorptions. Discuss the Gibbs adsorption isotherm. (8)(B) Give the expression for the equilibrium constant. How it is affected by volume, temperature and pressure? (8)