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Pune University - FY BSc INDUSTRIAL CHEMISTRY - I, April 2010

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Total No. of Questions : 10] [Total No. of Pages : 3 P207 [3717] - 29 F.Y. B.Sc. INDUSTRIAL CHEMISTRY (Theory Paper - I) (Vocational Course) (2008 New Pattern) Time : 3 Hours] [Max. Marks : 80 Instructions to the candidates: 1) Answers to the two sections should be written in separate books. 2) Neat diagrams must be drawn wherever necessary. 3) Figures to the right indicate full marks. 4) All questions carry equal marks. 5) Use of logarithmic tables, slide rule, Mollier charts, electronic pocket calculator and steam tables is allowed. 6) Assume suitable data, if necessary. 7) All questions are compulsory. SECTION - I Q1) Answer the following : a) Define Catalyst. b) [8] Adsorption of gases on solid does not depend on i) Temperature ii) Molecular weight. c) Define Sols. d) What is isoelectric point? Q2) Answer any two of the following : [8] a) Differentiate between homogeneous and heterogeneous catalysis with example. b) Derive expression for Lengmuir adsorption isotherm. c) Explain auto catalysis. P.T.O. Q3) Answer any two of the following : [8] a) Explain Phenomenon of Electro phorasis. b) Define Gels and give its classification. c) Explain how extent of adsorption increases on heating and increase in pressure. Q4) Answer any one of the following : [8] a) Explain Characterstics of catalytic reaction in detail. b) Define adsorption. Differentiate between physical and chemical adsorption. Give one example of each. Q5) Write short note on any two : a) Pramoters. b) Negative catalysis. c) Aerosol d) [8] Brownian movement. SECTION - II Q6) Define and explain the following terms : a) Degrees of freedom. b) Specific heat. c) Latent heat of sublimation. d) [8] Power. Q7) Answer any two of the following : [8] a) What is standard heat of reaction? How it is determined from heats of combustion? b) Outline the general methods of solving material balance problems for systems involving no chemical reactions. c) What do you understand by excess reactant? Illustrate with suitable example. [3717]-29 2 Q8) Write short notes on any two of the following : a) Conversion. b) Recycling operations : applications c) [8] Triple point of water. Q9) Answer any one of the following : [8] a) State and explain Gibbs phase rule. How it is applied in one component system? b) State and explain Raoult s Law and Henry s Law. Illustrate with example. Q10)Solve any two of the following : a) [8] Calculate the standard heat of reaction for the following conversion 2FeS2(s) + 11 O (g) Fe2O3(s) + 4SO2(g) 22 o o Given : H f FeS2(s) = 42520 cal. H f Fe2O3(s) = 196500cal, o H f SO2(g) = 70960cal. b) Calculate the volume occupied by 20kg of chlorine at 745mm pressure at 25 C. c) Carbon monoxide is reacted with hydrogen to produce methanol calculate i) Stoichiometric ratio of H2 to CO. ii) The quantity of CO required to produce 1000kg of CH3OH. vvvv [3717]-29 3

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Additional Info : F.Y. B.Sc. INDUSTRIAL CHEMISTRY (Theory Paper - I) (Vocational Course) (2008 New Pattern), Pune University
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