2005 Guru Nanak Dev University B Sc Chemistry PHYSICAL CHEMISTRY Chem 203 May 2k5 Question paper for exam preparation. Question paper for 2005 Guru Nanak Dev University B Sc Chemistry PHYSICAL CHEMISTRY Chem 203 May 2k5 Question paper, 2005 Guru Nanak Dev University B Sc Chemistry PHYSICAL CHEMISTRY Chem 203 May 2k5 Question paper. SiteMap
K2Questions Logo


2005 Guru Nanak Dev University B Sc Chemistry PHYSICAL CHEMISTRY Chem 203 May 2k5 Question paper

University Question Papers
2005 Guru Nanak Dev University B Sc Chemistry PHYSICAL CHEMISTRY Chem 203 May 2k5 Question paper
B.Sc in Chemistry 2nd Semester
2045
Chem - 203
Physical Chemistry

Time allowed : 3 hours

Maximum Marks : 75

Note : Attempt all questions of Section-A, eight questions from Section-B and two questions from Section-C

Section - A

1. Differentiate between ideal gases and real gases.

2. Define the terms : Average velocity, root mean square velocity and most probable velocity.

3. What is the average kinetic energy of one mole of nitrogen gas at 25º C ?

4. What are liquid crystals?

5. How many atoms are present in simple cubic and face centred cubic unit cells ?

6. Define sol, gel and emulsions.

7. Water has a dipole moment of 1.85D, while CO2 has zero dipole moment. Explain.

8. Distinguish between equivalent conductance and specific conductance.

9. Explain the term optical activity.

10. Define solubility product of a sparingly soluble salt.

1½ x 10

Setion - B

1. Explain why do the gases show cooling effect in adiabatic expansion. How can this effect lead to the liquification of gases?

2. Deduce expressions relatyed to the critical constants of gas in terms of van der Waals constants.

3. Give a brief account of Kinetic theory of gases.

4. Collision diameter of oxygen molecule is 361 pm at 27º C. Calculate the mean free path at 1 atm pressure.

5. Differentiate between different type of liquid crystals. Show diagramaticaly the molecular arrangemants of various types of liquid crystals.

6. State and explain the laws of crystallography.

7. Explain why :
(a) Gelatin prevents the precipitation of colloidal solutions.
(b) Alum is used in town water supply.
(c) Deltas are formed at a place where rivers merge in the sea.

8. Give a brief account of the Claussius-Mossotti equation.

9. Define dipole moment. How will you measure the dipole moments in solutions.

10. State and explain Kohlraush's law.

11. The resistance offered by 0.1 N KCl and 0.1 N AgNO3 solutions is found to be 307 and 368 ohms respectively at 25º C. Calculate the equivalent conductance of 0.1 N AgNO3 solution. (Specific conductance of 0.1 N KCl solution at 25º C is 0.01286 ohm-1).

12. Write short note on conductometric titrations.

4½ x 8 = 36


About us | SiteMap | Terms of use | Privacy Policy | Disclaimer | Contact us | ©2010 K2Questions.com

2005 Guru Nanak Dev University B Sc Chemistry PHYSICAL CHEMISTRY Chem 203 May 2k5 Question paper for exam preparation. Question paper for 2005 Guru Nanak Dev University B Sc Chemistry PHYSICAL CHEMISTRY Chem 203 May 2k5 Question paper, 2005 Guru Nanak Dev University B Sc Chemistry PHYSICAL CHEMISTRY Chem 203 May 2k5 Question paper