: 02000CH208052002 Pages: 2

Reg No.: Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

Fourth semester B.Tech examinations (S), September 2020

Course Code: CH208
Course Name: CHEMISTRY FOR PROCESS ENGINEERING II (CH)
Max. Marks: 100 Duration: 3 Hours

PARTA
Answer any two questions. Each question carries 15 marks.
1 a) Give the principle of potentiometry? How would you determine the equivalence 6
points of complexation titration potentiometrically?
b) Write a note on (a) Diffusion current (b) Half wave potential (c) Residual current 6
with the help of neat polarogram?

c) Explain the principle of Auger electron spectroscopy

2 a) Give the principle, instrumentation and applications of Scanning Tunnelling 6
Microscopy (STEM)?

b) What are main components of Atomic emission spectrometer? +

c) Explain the principle and applications of Coulometric titrations. 5

3 ஐ Draw the working of mass spectrometer with the help of a neat schematic diagram? 5

b) Describe the working principle and applications of Anodic Stripping Voltammetry 6

c) Explain the instrumentation of Atomic Force Microscopy? 4

PART 13
Answer any two questions. Each question carries 15 marks
4 a) Derive Nernst distribution law from thermodynamic considerations. Write any two 7
applications of the distribution law.
b) Explain important postulates of Arrhenius theory of electrolytes? 3

c) Write a note on Parke’s process. 5

5 ച What is critical solution temperature? Draw the triethyl amine — water system with 5
the help of neat diagram
b) Explain asymmetric effect and electrophoretic effect?

c) Explain concentration cell with transference?

6 a) Give the principle and important applications of steam distillation?

+ ൭ +> இ

b) Explain (1) Biosensors (2) Gas sensors

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