2010 Jawaharlal Nehru Technological University, Hyderabad Set No. 2 I B.Tech Regular Examinations,June 2010 ENGINEERING CHEMISTRY Question paper
Code No: 09A1BS03 R09 Set No. 2
I B.Tech Regular Examinations,JUNE 2010
ENGINEERING CHEMISTRY
Common to CE, ME, CHEM, BME, IT, MECT, MEP, AE, BT, AME, ICE,
E.COMP.E, MMT, ETM, EIE, CSE, ECE, EEE
Time: 3 hours Max Marks: 75
Answer any FIVE Questions
All Questions carry equal marks
1. (a) What is Gibbs phase rule, its signi cance and limitations?
(b) Explain with suitable examples the terms involved in Gibb's phase rule. [8+7]
2. Write an account on the re ning of petroleum by explaining the composition,boiling
range and uses of di erent fractions obtained during re ning. [15]
3. (a) What are concentration cells? How can the EMF of a concentration cell be
evaluated?
(b) Write short notes on single electrode potential and its signi cance. [9+6]
4. Explain the following statements with proper illustrations.
(a) Tyndal cone is observed when a beam of light is concentrated on colloidal
systems.
(b) Alums are used for the treatment of water supplied by municipalities. [8+7]
5. Write a brief account on the following:
(a) Heat capacity of a refractory material.
(b) Porosity of a refractory material.
(c) Thermal expansion and contraction.
(d) Refractoriness. [15]
6. (a) How are synthetic high polymers classi ed?
(b) Discuss the preparation, properties and uses of various grades of polythenes.
[8+7]
7. (a) What are the factors that lead to caustic embrittlement in boilers? How can
this be prevented?
(b) Distinguish between Zeolite process and Ion-Exchange process. [8+7]
8. (a) Explain the process of galvanizing and tinning.
(b) What are organic paints? Describe their constituents. [8+7]
KEYWORDS:ENGINEERING CHEMISTRY,ENGINEERING CHEMISTRY QUESTION PAPER,JNTU,JNTU QUESTION PAPER,JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD REGULAR EXAMINATIONS JUNE ENGINEERING CHEMISTRY
Code No: 09A1BS03 R09 Set No. 2
I B.Tech Regular Examinations,JUNE 2010
ENGINEERING CHEMISTRY
Common to CE, ME, CHEM, BME, IT, MECT, MEP, AE, BT, AME, ICE,
E.COMP.E, MMT, ETM, EIE, CSE, ECE, EEE
Time: 3 hours Max Marks: 75
Answer any FIVE Questions
All Questions carry equal marks
1. (a) What is Gibbs phase rule, its signi cance and limitations?
(b) Explain with suitable examples the terms involved in Gibb's phase rule. [8+7]
2. Write an account on the re ning of petroleum by explaining the composition,boiling
range and uses of di erent fractions obtained during re ning. [15]
3. (a) What are concentration cells? How can the EMF of a concentration cell be
evaluated?
(b) Write short notes on single electrode potential and its signi cance. [9+6]
4. Explain the following statements with proper illustrations.
(a) Tyndal cone is observed when a beam of light is concentrated on colloidal
systems.
(b) Alums are used for the treatment of water supplied by municipalities. [8+7]
5. Write a brief account on the following:
(a) Heat capacity of a refractory material.
(b) Porosity of a refractory material.
(c) Thermal expansion and contraction.
(d) Refractoriness. [15]
6. (a) How are synthetic high polymers classi ed?
(b) Discuss the preparation, properties and uses of various grades of polythenes.
[8+7]
7. (a) What are the factors that lead to caustic embrittlement in boilers? How can
this be prevented?
(b) Distinguish between Zeolite process and Ion-Exchange process. [8+7]
8. (a) Explain the process of galvanizing and tinning.
(b) What are organic paints? Describe their constituents. [8+7]
KEYWORDS:ENGINEERING CHEMISTRY,ENGINEERING CHEMISTRY QUESTION PAPER,JNTU,JNTU QUESTION PAPER,JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD REGULAR EXAMINATIONS JUNE ENGINEERING CHEMISTRY