PHYSICAL CHEMISTRY (Chemical Engineering) Max. Marks: 80 Answer any FIVE questions All questions carry equal marks ---
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Time: 3 Hours
Define Nernst distribution law. What are the conditions for the validity of the distribution law? Prove that C1/C2 = KD.
2.
Explain one component system with neat diagram.
3.a)
What do you understand by the rate of reaction, how does the rate constant for a reaction mixture vary with temperature? Give brief account of Arhenious theory of activation energy and activated complex.
b)
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1.a) b) c)
Explain the influence of solvent on reaction rates by double sphere activated complex model.
5.a) b)
What are Colloids? Discuss types of Colloidal systems. How sols are classified? Give suitable examples.
6.
Write notes on the following with reasons. a) Deltas are formed at a place where the river pours its water into sea. b) Sky appears to be blue c) A solution of ferric chloride is applied to a cut to stop bleeding. d) In many factories, the smoke before it comes out from the chimney is led over charged metallic plates.
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7.a)
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b)
What is meant by equivalent and molar conductance? How is it determined experimentally? 0.04 N solution of a salt placed between two platinum electrode, 20cm apart and of area of cross section 4.0 sq cm has a resistance of 30 ohms. Calculate the equivalent conductance of the solution.
8.a) What is meant by catalysis? Give two important examples of catalyst used in industries. b) Explain homogeneous catalysis with suitable examples. -*-*-*-
Answer any FIVE questions All questions carry equal marks --Derive the equation for distribution coefficient when i) Solute associate in one of the solvent. ii) Solute dissociate in one of the solvent Write four conditions for the validity of distribution law.
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Time: 3 Hours
2
Discuss the lead silver system with the help of phase diagram.
3.a) b)
Differentiate between order and molecularity of a reaction. Write the equation of rate constant of first order reaction. The rate constant for the first order reaction at 45 0C is twice that at 35 0C. Find the energy of activation of the reaction.
4.a) b)
Explain lower and upper explosion limits. Explain the salt effect on reaction rates.
5.a) b)
What are the characteristics of lyophilic and lyophobic solutions? Write note on Bredigs arc method.
6.
Explain the following with suitable reasons. a) Alum is used in shaving b) Alum is used in municipal water supply c) A colloidal solution is not precipitated in the presence of gelatin d) A colloidal solution contains electrically charged particles. e) Tyndall cone is formed when a beam of light is concentrated on colloidal solution.
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2.
7.a)
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b)
What is conductance ? Explain specific, equivalent and molar conductance, and give their units. The resistnace of N/20 solution of a sodium chloride is found to be 1.25 X 103 ohms. Calculate the equivalent conductance of the solution. Cell constant is 1.15 per cm.
8.a) b)
What are the important characteristic of catalytic reactions. Explain the following with examples. (i) Negative catalysis (ii) auto catalysis (iii) positive catalysis (iv) heterogeneous catalysis. -*-*-*-
PHYSICAL CHEMISTRY (Chemical Engineering) Max. Marks: 80 Answer any FIVE questions All questions carry equal marks ---
.in
Time: 3 Hours
What is distribution law? What are the limitations of distribution law? What are the important applications of distribution law?
2.
Explain the phase diagram of sulphur system?
3.a) b)
What are the basic postulates of theory of absolute reaction rates? Write down the rate constants of first and second order reaction.
4.a) b)
Explain the kinetics of chain reactions. Write a note on frequency factor.
5.a) b)
Distinguish between lyophilic and lyophobic colloids. Write short note on mechanical dispersion using colloidal mill.
6.
Write note on the following: a) Artificial kidney machine b) Formation of delta c) Non-drip or thixotropic paints.
7.a)
Explain the effect of concentration and dilution on molar and equivalent conductance Specific conductance of N/50 KCl solution is 0.002765 mho cm-1 at 24 0C. If the resistance of the solution contain in the cell is 100ohms, Calculate the cell constant.
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1.a) b) c)
What are the differences between homogeneous and heterogeneous catalysis? Explain the intermediate compound formation theory of catalysis.
d) In many factories, the smoke before it comes out from the chimney is led over · charged metallic plates. 7.a) What is meant by equivalent and molar ...
COMPUTER GRAPHICS · (Mechatronics) ... Explain briefly about various display devices used in computer graphics. 2. a) Write an ... 2D graphics primitives.
Estimate residual enthalpy and residual entropy for an equimolar mixture of carbon · dioxide (1) â nitrogen (2) at 400K and 135 bar pressure by the Redlich-Kwongg .... P2, T2. If the separation is removed and the gases are mixed adiabatically.
2.a) Explain the role of display interpreter in graphical display, with a block diagram. b) What is meant by normalized device co-ordinate system? What are its ...
2.a) Will capacitance of a transmission line depend upon the ground effect? If so explain. b) Explain the ... sag, if the factor of safety is 2 and ice weighs 910kg/m.
Engineering, Computer Science and Engineering, Electronics and Instrumentation · Engineering, Bio Medical Engineering, Computer Science and Information.
b) Explain the effect of oxygen on radio sensitivity of the tumor cell. 6. a) Describe the ... Explain the Modalities of radiation therapy. 6. Explain the radiation ...
Himalayan Orchards have canned apple and bottled juice as its product with profit ... following table gives the expected annual sales ( in thousands of Rs.) for ...
exonuclease activity, initiator protein, helicase, topoisomerase. 3. Write the differences between the eukaryotic and prokaryotic RNA polymerases · and their ...
What do you understand by 'Marketing mix' and what components influence the · marketing process? 7.a) Write a short note on CPM. b) What is the difference ...
layer and transport layer. b) Map TCP/IP Protocol suite onto the layers of the OSI model. ... 3. a) What is the frame format of HDLC protocol. What are operational ...
and exposed to still air at 25°C. If the pipe wall temperature is 295°C, · determine the rate of heat loss. .... expression for the same. b) Air at 25°C flows normally to 0.03m outer diameter water pipe with a velocity .... 0.04 kg/s of 34°API cr
a) Recorder b) Instrumentation diagrams c) Refractometer d) McLeod gage. - - - ... Explain the construction and working of the McLeod gage and the Pirani gage.
EEG, EMG and ERG signals. 2.a) Draw the heart pump diagram. Explain how it pumps blood to all the body parts. b) Explain how Bioelectric potentials are ...
Science and Engineering, Chemical Engineering, Computer Science and Information · Technology .... kept in mind for drawing network? 8. The following ...
c) Give a brief note on prosthetic heart valves. 8. Describe the mechanical properties of bone with examples. Explain what do you · understand by Lubrication of ...
b) Derive the power angle equation of a single machine connected to infinite bus. .... 2. a) Derive the Power balance equations in a power system and there from ...
Obtain an expression for the steady state Equimolal counter diffusion of two gases ... 1. a) Write the fick's law of diffusion for 'Z' direction. What is the significance ...
Crack in the metal · (ii) · Wire fence. (iii) Rivetted joints. b) What is meant by phosphating of steel? 4.a) Distinguish between thermoplastics and thermosetting ...
c) What is etching? Explain with neat sketches. d) Draw a neat sketch of metallurgical microscope and explain various parts of it. 2.a) Draw neat sketches of 3 ...
Write an account of Hodgekin-Huxley equation and add a note on its biological · relevance. Explain the terms- Membrane time constant and space constant.
