University of Calicut Previous Years Question Paper & Answer

University : University of Calicut
Course : B.Sc

Semester : SEMESTER 5

Year : 2021

Term : NOVEMBER

Scheme : 2019 Full Time

Course Code : CHE 5B 08

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Section B (Short Answers)

Answer at least five questions.

Each question carries 5 marks.

All questions can be attended.
Overall Ceiling 25.

Derive integrated rate equation for zero order kinetics. What are the features of zero order
kinetics ?

A first order reaction is 20% complete in 15 minutes at 40°C and in 3 minutes at 60°C. Calculate

the activation energy for the reaction.
How will you determine the order of a reaction using half life method ?
Explain any five applications of adsorption.
What is chemical shift ? Why TMS is used as a standard in NMR spectra ?
What is Photosensitization ? Explain with suitable examples.
With the help of Jablonsky diagram, explain fluorescence phenomena.
(5 x 5 = 25 marks)
Section C (Essay)

Answer any one question.
The question carries 11 marks.

a) Statedistribution law ? What are its characteristics ?
b) Derive distribution law and briefly explain any two applications.
Discuss in detail the vibrational spectra of anharmonic oscillator.

(1 x 11 = 11 marks)

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