Download GTU BE/B.Tech 2019 Winter 3rd Sem New 2132102 Metallurgical Thermodynamics Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 3rd Sem New 2132102 Metallurgical Thermodynamics Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ? III (New) EXAMINATION ? WINTER 2019
Subject Code: 2132102 Date: 30/11/2019

Subject Name: Metallurgical Thermodynamics
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

Q.1 (a) Give applications of thermodynamics. 03
(b) Explain system and surroundings. 04
(c) With proper example prove that Energy, a state property. 07

Q.2 (a) Explain and state types of equilibrium. 03
(b) State zeroth law of thermodynamics and give its importance. 04
(c) State 1st and 2nd Law of thermodynamics and give its significance. 07
OR
(c) Define Specific heat and derive relationship Cp - Cv = R. 07
Q.3 (a) Explain Van?t Hoff equation. 03
(b)
Explain Quasi- static process.
04
(c) Compare and contrast Hess? law and Kirchhoff?s law. 07
OR
Q.3 (a) What are functions of slag? 03
(b) Explain the concept of basicity index. 04
(c) What is free energy? Derive equation for Gibb?s free energy. 07
Q.4 (a) Define fugacity. 03
(b) Write a short note on Clausius-Clapeyron equation. 04
(c) State & explain Ellingham diagram for various metal oxides? 07
OR
Q.4 (a) Explain heat of formation with example. 03
(b) Explain reversible and irreversible changes. 04
(c) Explain Raoult?s law and Henry?s law. 07
Q.5 (a) Write formula for Mol fraction and give definition of Molality,
Molarity and Normality.
03
(b) Define Atom fraction. Write conversion from weight % to atom %
or vice-versa.
04
(c) Briefly explain thermodynamics of Slag ? Metal reaction. 07
OR
Q.5 (a) Explain 1wt % Standard State. 03
(b) Calculate the standard enthalpy change for the following reaction at
1523K. Cu2S (s) + 2Cu2O (s) = 6 Cu (l) + SO2 (g)
Given the value of standard enthalpy change of formation at 1523K.
?H?f,1523 kJ/mol Cu2S (s) = -86.7; Cu2O (s) = -176.4; SO2 (g) = -
278.4
04
(c) State & derive Maxwell?s equation from combined statement of first
& second law.
07
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