B.Sc-B.Sc Industrial Chemistry 3rd Sem INDUSTRIALCHEMISTRY - I(University of Pune, Pune-2013)

                                         F.Y. B.Sc. (Vocational)

SEAT No. :

[Total No. of Pages : 3

INDUSTRIALCHEMISTRY - I

(2008 Pattern) (Theory) (Paper - I)

Time :3 Hours]                                                                                                 [Max. Marks :80

Instructions to the candidates :

Answers to the two sections should be written in separate books. Figures to the right indicate full marks.

All questions carry equal marks.

Use of logarithmic tables slide rule, Mollier charts, electronic pocket

calculator and steam tables is allowed.

SECTION - I

Q1) Define and explain the following terms :

a) Chemical adsorption.

b) Isoelectric point.

c) Aerosoles.

d) Homogeneous catalysis.

Q2) Answer any two of the following :

a) Explain energy profile diagram for a reaction with and without catalyst. b) Define and explain catalytic poisoing with examples.

c) Where the following catalyst are used?

i) Pt-gauze

ii) Nickel

iii) HgSO4 and

iv) Zymase

Q3) Answer any two of the following :                                                                     [8]

a) What are emulsions and emulsifier? Explain with examples.

b) Define adsorption. Explain Freundlich adsorption isotherm.

c) Differentiate between lyophillic and lyophobic sols.

P.T.O.

a) Explain characteristics of catalytic reaction in detail.

b) Give brief account of Adsorption chromatography and Adsorption

indicators.

Q5) Write short notes on any two :                                                                            [8]

a) Tyndal effect.

b) Gels.

c) Enzyme Catalysis.

SECTION - II

Q6) Define and explain the following terms.

a) Triple point of water.

b) Yield.

c) Limiting reactant.

d) Mole fraction.

Q7) Answer any two of the following :

a) Explain the different types of latent heats associated with phase change

with suitable examples.

b) Discuss any two methods for solving problems of material balance of

systems involving no chemical reaction.

c) Define and explain equivalent weight. Calculate equivalent weight of Oxalic

acid. [Mol. Formula H2C2O4. 2H2O]

Q8) Write short notes on any two of the following :

a) Standard heat of reaction.

b) Recycling operations.

c) Material balance involved in extraction.

Q9) Answer any one of the following :

a) State and explain Hess’s law of constant heat summation. How it is

useful in the determination of heat of formation of hydrocarbons from their heat of combustion studies.

b) State and explain Raoult’s Law and Henry’s Law. Illustrate with examples.

Q10) Solve any two of the following :                                                                       [8]

a) 5 kg of Oxygen in a closed container of volume 1m3 is heated at 7 atm.

pressure. Calculate maximum temperature attained by gas.

b) Calculate heat of formation of phenol crystals from its elements.

Data 

C(S) + O2(g)® CO2(g)       DH1 = –94051 cal.

H2(g) + O2 2(g) ® H2O  DH2 = –68317 cal.

Add comment