Gujarat Technological UniversitySummer 2026 examination

GTU 2180507 Transport Phenomena Summer 2026 Question Paper & PDF

B.E. · Chemical Engineering · Semester 8 · Subject code 2180507
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Total
70 marks
To pass
23 marks (33%)
Duration
2.5 Hours 10:30 AM – 1:00 PM
Questions
5 with internal choice
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Q.1

14 Marks
(a)
3 marks
Define Scalar, Vector and Tensor quantities used in transport phenomena with examples
(b)
4 marks
Discuss the application of transport phenomena in Chemical Engineering
(c)
7 marks
Derive the expression of velocity distribution and momentum flux for Couette Viscometer.

Q.2

14 Marks
(a)
3 marks

Explain the concept of shell momentum balance in fluid flow. State the general boundary conditions used in solving momentum transport problems.

(b)
4 marks

Develop the steady state temperature profile for solid slab between two parallel plates with explanation of molecular heat transport.

(c)
7 marks

Water at 20°C is flowing down a vertical wall with Re = 10. Calculate (a) the flow rate and (b) the film thickness in inches. given data: density= 998.2 kg/m³, viscosity= 1.002*10⁻³ kg.m/s and kinematic viscosity =1.0038*10⁻⁶ m²/s.

(c)
7 marks

A thermocouple in a cylindrical well inserted into a gas stream. Estimate the true temperature of gas stream if temperature indicated by thermocouple T1 = 500°F , wall temperature Tw = 350°F. Given data: h= 120 btu / hr. Ft2. F, k= 60 btu / hr. Ft3. F , thickness of well wall B=0.08 in , length of well L= 0.2 ft.

Q.3

14 Marks
(a)
3 marks
State and explain Fourier’s Law of Heat Conduction with its mathematical expression.
(b)
4 marks
Discuss the dependence of thermal conductivity on temperature and pressure.
(c)
7 marks

Develop the temperature distribution equation for steady-state heat conduction in a plane wall with uniform chemical heat generation. State all assumptions clearly.

(a)
3 marks
What is Thiele Modulus?
(b)
4 marks
Describe the velocity distribution and shear stress distribution in laminar flow through an annulus.
(c)
7 marks

Develop the temperature distribution equation for steady-state heat conduction in a plane wall with uniform electrical heat generation. State all assumptions clearly.

Q.4

14 Marks
(a)
3 marks
Prove that Ja +Jb=0
(b)
4 marks
Explain various experimental and theoretical methods used to determine critical diffusivity (CDAA)c.
(c)
7 marks

Derive the expression for molar flux for equimolar counter diffusion of components A and BDerive the expression for molar flux for equimolar counter diffusion of components A and BDerive the expression for molar flux for equimolar counter diffusion of components A and BDerive the expression for molar flux for equimolar counter diffusion of components A and B.

(a)
3 marks
Define combine molar and mass flux.
(b)
4 marks

Estimate DAB for the system CO-CO2 at 296.1 K and 1 atm total pressure. Properties: a= 2.745*10⁻⁴, b= 1.823

SpeciesTc (K)Pc (atm)
CO13334.5
CO2304.272.9
(c)
7 marks

Discuss the diffusion of a gas through a stagnant gas film. Derive the governing equation for molar flux and state the assumptions involved.

Q.5

14 Marks
(a)
3 marks
Define Prandtl number. Explain how its value varies for gases, liquids.
(b)
4 marks
Why is diffusion in liquids slower than in gases? Explain in terms of molecular interactions.
(c)
7 marks

Using conservation of mass, derive the general continuity equation in Cartesian coordinates and explain its physical significance.

(a)
3 marks
Define Schmidt number. Explain how its value varies for gases, liquids, and polymer suspensions.
(b)
4 marks
Why is heat conduction in metals higher than in non-metals? Explain based on molecular transport mechanism.
(c)
7 marks
Derive the Navier-Stoke’s equation in cylindrical coordinate.

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About this paper

Official Gujarat Technological University (GTU) examination paper for Transport Phenomena (Summer 2026, B.E. · Chemical Engineering, Sem 8). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.

Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.

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