aster of Science II(Physical Chemistry)
Examination: Oct Nov 2016 Semester IV NEW CGPA)
SLR No. Day
Date Time Subject Name Paper
No. Seat No.
SLR SD
247
Thursday
17/11/2016
02:30 PM
to
05.00 PM
Statistical Mechanics
and Thermodynamics
C
XIII
Instructions: Answer any five questions.
All questions carry equal marks.
(Section-I) Q.1 is compulsory.
Attempt any two questions from Section II
Attempt any two questions from Section III
Answers to all questions (Section II and III) should be
written in the one answer book.
Use of log table and calculators in allowed.
Total Marks:70
SECTION I
Q.1 Answer the following: 14
Define streaming potential.
The electronic partition function of an atom whose atomic state is 2D3/2 is

What do you mean by an integrating factor?
What is symmetry number for ammonia and water molecule?
What is the probability of receiving a card of king from a standard pack of 52
cards?
In Canonical ensemble thermodynamic parameters remains constant.
Put the condition for maximum probability.
Do the partial differentiation for
State the principle of conservation of mass in an open system.
Write down Debye T-cubed law.
The expression for vibrational partition function is given by
For a reaction between N2 3H2 2NH3. Write the expression for degree of
advancement of the reaction.
Mention any two fermions.
Give the general relation between entropy and partition function.
SECTION II
Q.2 Give the expression for translational partition function. How it is related with
the entropy.
07
Deduce the expression for Fermi-Dirac statistics. 07
Q.3 Define molecular partition function. Relate partition function with
thermodynamic properties like G and A.
07
Discuss entropy production due to heat flow. 07
Page 1 of 2
Q.4 Illustrate Onsager's theory of microscopic reversibility. 07
Explain Debye heat capacity theory for monatomic solids. 07
SECTION III
Q.5 Explain the concept of electron gas in metal. 05
Write on exact and inexact differentials. Give examples of each. 05
Calculate characteristic rotational temperature and rotational partition
function
for H2 at 250oC. (Given IH2 4.602x10-48 kg m2)
04
Q.6 Write on configuration and microstates. 05
Discuss conservation of mass in closed and in open system. 05
Using the equations PV=RT and show that dp is an exact
differential.
04
Q.7 Write a note on any three of the following: 14
Legendre's transformations
Applications of Bose-Einstein statistics
Electronic partition function
Saxen's relations