Download DBATU B.Tech 2019 Oct-Nov Chemical Engineering-CHEM 5th Sem Chemical Engineering Thermodynamics II Question Paper

Download DBATU (Dr. Babasaheb Ambedkar Technological University) B Tech 2019 Oct-Nov (Bachelor of Technology) Chemical Engineering-CHEM 5th Sem Chemical Engineering Thermodynamics II Question Paper

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Course: Bngechin chemicaliengi?neering? _. s ? * _ :VSemies'te?rzvV ?
f Subject.Name: eheniical engineering thermodynamic'sflI' SubjectiCodei?EBT?CHC"501
Max Marks: 20 , , ' :Date:-2?3/09I2019 F 3.31;)nratiomf'1 Hr, r '
:3 ? "h m. BABASAHEB AMBEDKARTECHNOLOGICAL UNIVERSITY, LoNEn'E
E'Mid 'Semester Examination 4.- September 2019 ?
'?rC'NM)
Instructions to ?the Students: ? ? ? . ? .- . . s n
? ' Question 1? is Compulsory and carries 6 marks -
? Figures to right indicate marks , ' . ,_
If any data is missing, you may assume it and mention it in your answer sheet
Usual symbols-apply' ? F ?
PPN?.?
E(Lev?l/CQ')
Marks
' , ? Pick the eori'ect alternative for thefoilowing qnest'ion
? i' 1.NecE:s?sary and suf?cient conditionfor equilibrium?between two phases is Understanding
a. Coneentrationof each compenent should be same in two phases
b,The pressure should be same in two phases ,. ? ? '
c.The temperature should be same in two p ases
de'he chemical-potentlal of each component shOuld be same in two phases
' b. the maximum net work
2. at constant temperature and pressure ,the' decrease in free energy is a ? ? Undersmding "
? measure of h v
a. the maximum work
0. the unavailable energy
d. the loss in capacity to do work
' d.a reference property-
3. Chemicalpotential is
a. an extensive property
b. an intensive propergy
e. a path property
Understanding ,
? y 4. which one of? the following is incorrect with respectto partial molar properties? ' ? Understanding
a. they are intensive properties
b.th?ey are always positive
c. they represent thecontribution of individual component to the solution properties
(1. they vary-with composition of solution
5 .the Value 'of activity coef?cient for an ideal solution is
a. one
b.2ero
o. three
?d. four '
Remembering
6.the equation dU = T dS ? P dV is applicable to in?nitesimal changes occurring in. ' Understanding
a. an open system of constant composition
b. a closed system of constant composition.
c. an open system with change in composition
d. a closed system with change in Composition
?Q-z
?Solve Any Two of the following.
3X2
? T(A)
Derive Gibbs Duhem?s equation from fundamentals.
. Remembering
s_(B)
What ismodified Roult?s law? How we can use it in vapor liquid calculation? Remembering . ,

? E(Cf) . .
j . , 106 74 kPa respectively. Dete?nitie the 60mpositio?n 0f the liquid and vapour ,
?in equilibrium at 373 K and 101. 3kPa
n4heptan? 311d tolune fomi ideal solution .at 373' K, their vapour pre'ss?ux are
)1 Analyzing
' 1 alcohol with 0. 07m3 pure water? If npt pgssible, what volume
,mixed' in order to prepare a mixture of same strength and of r
1d have been"
1: Dens1ty of ethanol and water are 789 and 997 respectively. Partia1 molar volume of _
1? ethanol arid water are 53 6* 10'3 In3 /mol and 18*103 m3/1nol respectively at the?
I desired compOsition , S
_? 1ed volu111? ?1 ? I
. , Solve Any One of the fo110wing. , 1 _ . _ , ~ .. 7 ,
?' (A) .- State the Roult?s law. Show that it is a simp1i?ed form of Lewis ?Rand311 rule. ' 1 . Understanding . , . i: _. .
(B) ?Will it be possible to prepare 0.1 m3 of alcohol?water sOlution b? y. 11g 0.03 m3Ahalyzii1g , ,
*1?: End ?915!