Exam Details
| Subject | physical chemistry – i | |
| Paper | ||
| Exam / Course | m.sc. chemistry | |
| Department | ||
| Organization | solapur university | |
| Position | ||
| Exam Date | April, 2018 | |
| City, State | maharashtra, solapur |
Question Paper
M.Sc. (Semester (CBCS) Examination Mar/Apr-2018
Chemistry
PHYSICAL CHEMISTRY I
Time: 2½ Hours
Max. Marks: 70
Instructions: Attempt in all 5 questions. Section I is compulsory Attempt any two questions from Section II and any two from Section III Answer to all questions (Section II, and III) should be written in the same answer book Figures to the right indicate full marks. All questions carry equal marks. Use of calculator and log-table is allowed.
SECTION I
Q.1
Answer the following:-
14
Define flocculation value.
Mention any two cationic surfactants.
What do you mean by the term most probable configuration?
Give the principle of equal a priori probability.
Which of the following is path dependent function?
q
H
S
Give the statement of zeroth law of thermodynamics.
Write the expression for entropy of mixing.
Define residual entropy.
Give the principle involved in pressure jump method.
10) What is the ideal source for flash photolysis technique?
11) Mention the thermodynamic functions which are common for grand canonical ensemble.
12) Fugcity of solid is equal to that of vapor with what it is in equilibrium. (True or False)
13) What do you mean by Kraft's temperature?
14) Using Stirling's approximation evaluates logeN. is Avagadro's number)
SECTION II
Q.2
Discuss how third law of thermodynamics can be used in the estimation of absolute entropy of a gaseous substance at 298 K.
07
Derive the expression for Maxwell-Boltzmann distribution law in terms of α and β.
07
Q.3
Explain light scattering method for determination of molar masses of polymer.
07
Discuss stopped-flow method with schematic diagram.
07
Q.4
Describe mechanism and kinetics of free radical polymerization.
07
What is activity coefficient? Discuss freezing point depression method for its determination.
07
Page 2 of 2
SLR-UF-145
SECTION III
Q.5
Give the physical significance of Maxwell-Boltzmann distribution law.
05
Mention different types of ensembles. Discuss canonical ensemble.
05
The relaxation time for fast reaction is 25 microseconds and equilibrium constant is 2x10-3. Evaluate rate constant for forward and backward reactions.
04
Q.6
Discuss relaxation methods used for studying kinetics of fast reactions.
05
Explain the dispersion method for preparation of colloids.
05
Evaluate entropy change when 3 moles of gas is heated from 27°C to 327°C at constant pressure of 1 atm. The heat capacity of the gas is 37.5 J/K.
04
Q.7
Write notes on any three:-
14
Gibbs' phase rule
Properties of colloids
Statistical weight and configuration
Flash photolysis technique for studying fast kinetics
Chemistry
PHYSICAL CHEMISTRY I
Time: 2½ Hours
Max. Marks: 70
Instructions: Attempt in all 5 questions. Section I is compulsory Attempt any two questions from Section II and any two from Section III Answer to all questions (Section II, and III) should be written in the same answer book Figures to the right indicate full marks. All questions carry equal marks. Use of calculator and log-table is allowed.
SECTION I
Q.1
Answer the following:-
14
Define flocculation value.
Mention any two cationic surfactants.
What do you mean by the term most probable configuration?
Give the principle of equal a priori probability.
Which of the following is path dependent function?
q
H
S
Give the statement of zeroth law of thermodynamics.
Write the expression for entropy of mixing.
Define residual entropy.
Give the principle involved in pressure jump method.
10) What is the ideal source for flash photolysis technique?
11) Mention the thermodynamic functions which are common for grand canonical ensemble.
12) Fugcity of solid is equal to that of vapor with what it is in equilibrium. (True or False)
13) What do you mean by Kraft's temperature?
14) Using Stirling's approximation evaluates logeN. is Avagadro's number)
SECTION II
Q.2
Discuss how third law of thermodynamics can be used in the estimation of absolute entropy of a gaseous substance at 298 K.
07
Derive the expression for Maxwell-Boltzmann distribution law in terms of α and β.
07
Q.3
Explain light scattering method for determination of molar masses of polymer.
07
Discuss stopped-flow method with schematic diagram.
07
Q.4
Describe mechanism and kinetics of free radical polymerization.
07
What is activity coefficient? Discuss freezing point depression method for its determination.
07
Page 2 of 2
SLR-UF-145
SECTION III
Q.5
Give the physical significance of Maxwell-Boltzmann distribution law.
05
Mention different types of ensembles. Discuss canonical ensemble.
05
The relaxation time for fast reaction is 25 microseconds and equilibrium constant is 2x10-3. Evaluate rate constant for forward and backward reactions.
04
Q.6
Discuss relaxation methods used for studying kinetics of fast reactions.
05
Explain the dispersion method for preparation of colloids.
05
Evaluate entropy change when 3 moles of gas is heated from 27°C to 327°C at constant pressure of 1 atm. The heat capacity of the gas is 37.5 J/K.
04
Q.7
Write notes on any three:-
14
Gibbs' phase rule
Properties of colloids
Statistical weight and configuration
Flash photolysis technique for studying fast kinetics
Other Question Papers
Subjects
- advanced organic chemistry – i
- advanced organic chemistry – ii
- advanced spectroscopic methods
- analytical chemistry – i
- applied organic chemistry
- chemistry of natural products
- inorganic chemistry – i
- inorganic chemistry – ii
- instrumental methods of analysis (oet)
- organic chemistry – i
- organic chemistry – ii
- photochemistry and pericyclic reactions
- physical chemistry – i
- physical chemistry – ii
- stereochemistry