DISTANCE EDUCATION
M.Sc. (Chemistry) DEGREE EXAMINATION,
DECEMBER 2017.
PHYSICAL CHEMISTRY II
(2008 onwards)
Time Three hours Maximum 100 marks
Answer any FIVE questions.
Each question caries 20 marks.
x 20 100)
1. Derive an expression for translational partition
function.
Discuss statistical treatment of third law of
thermodynamics.
State and explain Onsager reciprocal relations.
2. Briefly discuss Einstein and Debye's models.
Explain the applications of quantum mechanics to
rigid rotor system.
3. What are the steps involved in the applications of
the variation method?
State and explain Pauli's exclusion principles.
Explain the need for the approximation methods.
Sub. Code
23
DE-2967
2
wk 3
4. What are symmetry elements? Explain.
Write the classification of point groups.
What are reducible and irreducible representations?
Explain.
5. Explain the electronic spectra of formaldehyde
molecule using group theory.
Predict the IR and Raman active fundamental
vibrations of H2O molecule.
6. Describe the effect of pH and temperature on
enzyme catalysed reaction.
What are the factors influence the reaction rate in
solution? Explain.
7. Write note on Acidity functions.
Briefly discuss about the primary salt effect on the
rate of reaction.
Write the difference between physorption and
chemisorption.
8. How will you determine surface area of an
absorbent using BET isotherms?
Discuss the Langmuir-Hinshel wood mechanism of
bimolecular surface reaction.
Write note on Surfactants.
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