Download GTU B.Tech 2020 Winter 7th Sem 2173901 Application Of Cnt And Metallic Nanoparticles Question Paper

Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Winter 7th Sem 2173901 Application Of Cnt And Metallic Nanoparticles Previous Question Paper

Seat No.: ________
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER?VII (NEW) EXAMINATION ? WINTER 2020
Subject Code:2173901 Date:19/01/2021
Subject Name:Application of CNT and Metallic Nanoparticles
Time:10:30 AM TO 12:30 PM Total Marks: 56
Instructions:
1. Attempt any FOUR questions out of EIGHT questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.


MARKS
Q.1 (a) Mention any two Nobel metal nanoparticles and write its properties.
03

(b) Classify CNT based on number of walls and hence describe double wall
04
CNT.

(c) Write a short note on structure of CNT.
07


Q.2 (a) Write down applications of CNT based on its mechanical properties.
03

(b) Define Stress and Strain and hence explain mechanical Property of CNTs.
04

(c) Define MNPs and its Microelectronic applications.
07




Q.3 (a) What do mean by Solar Energy Conversation.
03

(b) Explain Phase Transfer Method.
04

(c) What are the types of stabilization mechanism and describe it?
07




Q.4 (a) Mention five-five applications of MNPs and CNTs for sensors, each.
03

(b) Explain heat transport and thermal stability of CNTs.
04

(c) Write a short note on medical field application of MNPs and biological
07
applications of CNTs.
Q.5 (a) Define: CNTs for field emission and lightning application.
03

(b) Explain: Magic nano clusters by describing magic numbers.
04

(c) Mention wet chemical synthesis processes and describe any three briefly.
07



Q.6 (a) What do you understand by Dative Bond and DLVO Theory?
03

(b) Mention any five metallic nanoparticles and hence explain any one wet
04
chemical synthesis method.

(c) Differentiate: Batch and Flow reaction and hence explain hydrothermal
07
synthesis.
Q.7 (a) How can we use electrochemical route to form metallic nanoparticles?
03

(b) Define: single wall CNT and explain elastic and vibrational properties of
04
the same.

(c) Define emulsion, also explain in detail: Reverse Micelle Synthesis.
07



Q.8 (a) Define: Supercritical Fluid.
03
(b) How can we measure optical properties of nanostructure? Describe
04
optical Properties of CNTs.
(c) Write a short note on applications of CNTs for energy.
07

*************
1

---