Download DBATU B.Tech 2019 Oct-Nov Chemical Engineering-CHEM 3rd Sem Chemical Process Calculation Question Paper

Download DBATU (Dr. Babasaheb Ambedkar Technological University) B Tech 2019 Oct-Nov (Bachelor of Technology) Chemical Engineering-CHEM 3rd Sem Chemical Process Calculation Question Paper

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DR. BABASAHEB AMBEDKAR TECHNOLOGICAL UNIVERSITY, LONERE
Mid Semester Examination? Oct 2019
ICOurse: B. Techin -? Chemical ? ~ ? ? . ? , , Sem: III ?
Subject Name: Chemical Process Calculation Subject CodezBTCH302 '- ' _ ?
,1 Max Marks: 20 " k I Date:- ' . Duration:- 1 Hr.
; Instructions to the Students:
1'. All questions are'compulsory.
1 2.- Question one are compulsory
3. Solve any two from question 2 and solve any one from question 3
4. Assume suitable data wherever required.
0,2},VQ511 Attempt following Questions. ' (Level/CO) Marks?
., 1? . ._ 1. N T.P. corresponds to .a) 1 atm.abSolu1e pressures. 0?C b) 760 mm Hg gauge pressure & 1' . , ('4 p. 6 " '
p _ 0?C c) 760 torr & 15?C d) 101.325 KPa gauge pressure & 0?C ? - a > ?
2. A 'Iimiting reactant' Is the one which decides the in the chemical reacation ' 4' ' . ?2
' p a) equilibrium constant b) conversion 0) rate constant d) none of these
3. Recycling In a chemical process facilitates a) increased yield b)?enrichment of product c) hea't? ' 3
' conservation d) all (a). (b) &(c) ? 1'
' ? = . 4_. Giga stands for ............ a) 10? b) 10" c) 10" (1)10?
' 5. One Newion' 13 equal to ?_ dynes a) 102 b) 103 c) 10? d) 105 V . _ , ,
6_. Number of gm moles of solute dissolved In 1 kg of solvent" Is called it? s ? i M} ? ' 3 '4 ?' ?
W V_ a)_normality b) .molarity c) mola'lity d) formality . -. . V
i "I -? Q2 'S?o'lve Any Two Of the folloWing. , V 1 i . ' 3 X 2
:7 (A) In double effect EVaporator plant second effect' 1s maintained under vacuum of 475 Torr ? ? 4
I ? ' : .(111111Hg). F 1nd the absolute pressure in Kpa, bar and psi. ? , v , 1 ? p
3 V 3', (B) . An aqueous 5011111011 of acetic acid of 35% concentrated by weight has density 1. 04 Kg/L at H ? 2 2' i
'1 V 298? K. Calculate Molality, Normality and Morlality I I
, . \ Ij??c) , A feed to a continuous fractionating colurnn analyses by wt 28% Benzene and 72 % I V v 2,
? ', toluene. Analysis of distillate shows 52% Benzene and 05 % toiuene was found 1n bottom
. , .' (product. Calculate amount of distillate and bottom product per 1000 Kg of feed pe?r hO'ur . V. ', .
? Also calculate % recovery of benzene. ' I , ? 7
4' v Q.3 Solve Any One of the following. ? . ? ? : 1 -' _ . , 3? ('8
Iz'(A) With'neat Sketch describe Recycle,Bypass and Purge Operetion. ' p . V . 1 ' ,3 , ,' I
(I (B) Pure C02 may be prepared?by treating lirnestone with, aq. Sulphuric acid limestone ' ? 2 ,
- ..oontaining Caco3 8; Mgc03' remainder being inert inSolUble material. Acid used contained
? 3 V 1? 12% H2S04 by weight. Residue from process had following eomposition CaSO_4- 8. 56%, ,
'MgSO4 5.23%, H2804 511.05%, Inerts? 0.53%, COT 0.12% & water 84. 5% During
" " I , prOcess mass was warmed & C02 and water vapour are removed calculate analysis of
' ? " j limestone
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