DISTANCE EDUCATION
M.Sc. (Chemistry) DEGREE EXAMINATION,
DECEMBER 2017.
PHYSICAL CHEMISTRY I
(2008 onwards)
Time Three hours Maximum 100 marks
Answer any FIVE questions.
Each question carries 20 marks.
× 20 100)
1. How does the free energy change explain the
spontaneity of chemical reaction?
What are partial molar quantities? Explain.
Explain the following terms Entropy Activity
Activity co-efficient
2. Define and explain Nernst Heat Theorem.
Give the experimental verification of third law of
thermodynamics.
Derive Nernst equation.
3. Explain the different types of electrodes with
examples.
State and explain Heisenberg Uncertainty principle.

What are potential energy surfaces? Explain.
Sub. Code
13
DE-2963
2
Ws6
4. Discuss the concept of wave particle dualism using
De-Broglie hypothesis.
Define the following with examples Eigen
function Eigen value.
What are operators? Explain Hamiltonian operator
and Linear operator.
5. What is hydrated electron? Give its properties?
Write and explain the laws of photochemistry.
What is quantum yield? Discuss the significance of
quantum yield value with examples.
6. Derive the Schrodinger wave equation for particle
in a 3-D box and obtain expression for eigen value
and eigen function of energy.
Discuss the principle of microscopic reversibility.
7. Draw Jablonski diagram and explain various
photophysical and photochemical processes.
How will you differentiate thermal and
photochemical reactions?
Discuss the role of NMR spectral methods in study
of fast reactions.
8. Discuss the Hinshelwood theory of unimolecular
reactions.
Discuss the kinetics and mechanism of explosive
reactions.
Write a note on chemiluminescence.
————————