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FIFTH SEMESTER (CBCSS—UG) DEGREE EXAMINATION
NOVEMBER 2022
Chemistry
CHE 5B 08—PHYSICAL CHEMISTRY—II

(2019 Admission onwards)

: Two Hours Maximum : 60 Marks

Section A (Short Answers)

Answer questions up to 20 marks.

Each question carries 2 marks.
What is meant by order of a reaction ?
Explain Michaelis-Menten theory for enzyme catalysis.
Derive half life period for zero order reaction.
What is homogeneous catalysis ? Give examples.
Define CST. Give examples for systems with upper and lower CST values.
What is eutectic temperature ?
Explain Born-Oppenheimer approximation.
How many vibrational modes are possible for HO molecule ?
What are Chromophores ? Give examples.
How many N MR signals are given by ethyl methyl ketone ?
State Grothus-Draper law.
What is ISC ? How it takes place ?

(Ceiling of marks : 20)
Section B (Short Answers)

Answer questions up to 30 marks.

Each question carries 5 marks.
Derive integrated rate equation for first order kinetics. What are the features of first order
kinetics ?
How will you determine the surface area of an adsorbent from the isotherm data ?

Turn over

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