CHEMICAL ENGINEERING THERMODYNAMICS (Chemical Engineering) Time: 3 Hours Max. Marks: 70 Answer any FIVE questions All questions carry equal marks --1. A pressure gauge fitted to a steam boiler records a pressure of 34 bar.The vacuum gauge on the condenser indicates 0.94 bar. If the atmospheric pressure is 1 bar , calculate a) Absolute pressure in the boiler in Pa b) Absolute perssure in the condenser in Pa.
Prove that the work interaction in a steady flow process is given by - Pdv. State clearly the assumptions, if any.
3.
Consider isentropic compression of air from 1.01 bar, 35 C to 5.5 bar. The air is then expanded isobarically to the original volume. Show the processes on the p-v and T-s planes. Also determine the total heat transfer and the total work transfer. Assume the mass of air as 0.75 kg.
4.a) b)
Discuss briefly the virial expansion. Explain briefly the law of corresponding states.
5.
Write briefly about the limitations and real process of second law of thermodynamics.
6.
Calculate the difference in entropy of 0.5kg of liquid water at O C and 1x105 N/m2 pressure and 0.5 kg of water vapor at 100C and 1(atm) pressure. the latent heat of vaporization at 100 C is 530 kgal/kg.
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2.
A process stream is heated as a gas from 25 C to 250 C at constant pressure. A quick estimate of the energy requirement is obtained., with Cp taken as constant and equal to its value at 25 C. Is the estimate of Q likely to be low or high? Why?
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7.
8.
A light fuel oil with an average chemical composition of C10H18 is burning with oxygen in a bomb calorimeter. The heat evolved is measured as 43,960 J / gm for the reaction at 25 C. Calculate the standard heat of combustion of the fuel oil at 25 C with H2O(g) and CO2(g) as products. Note that the reaction in the bomb occurs at constant volume, produces liquid water as a product and goes to completion. -*-*-*-
State the second law of thermodynamics and explain how it is applied for · development of heat engine. 6. A reversible heat engine absorbs 252 kcal at 260°C, ...
(a) Job order production and batch production system. (b) Mass production and flow production. [4+4+4+4] · 7. DefineâCritical pathâ, âslack timeâand âDummy ...
(b) The ground water level in a deposit of fine sand is 1.5 m below ground level. Above the water table ... is 21 kN/m3. Calculate the total stress, the neutral stress.
NR. IV B.Tech I Semester Supplementary Examinations, November 2005 ... 3. Analyse the following frame using stiffness method. EI constant. (figure 3) [16].
(b) Explain the following particle size measurement techniques. i. Sedimentation ... compaction. [6]. (b) Define Sintering and how is it different from hot pressing.
III B.Tech I Semester Supplementary Examinations, November 2005. AERO SPACE ... (b) Maximum energy theory. [16] ... plain with live examples. (b) Write a ...
(b) Explain the basic principle of the instrument used for Condition monitoring · of any process. [8+8] · 2. (a) Compare and construct the functioning of rupture ...
What do you understand by Non-destructive testing techniques? List various tech- · nique of NDT and explain any three of them · [16]. 8. Write short notes on the ...
b) Explain the principle of single tuned capacitance coupled amplifiers. 3.a) Classify various commutation techniques. Also explain class A commutation.
Using dynamic programming method, how do you find the most economical ... the additional reactive power requirement at the receiving end to meet a load of ...
4. What are the objectives of wage and salary administration function? [4+6+6] · 5. Write short notes on: · [4x4=16] · (a) Speculative purchasing · (b) Rate contract ...
(a) What are the different problems associated with measurement of low resis- · tances. Explain. (b) How these problems are eliminated by using Kelvins double ...
(b) What is score boarding and its use in RISC? [10] · 5. (a) Explain the salient features of Pentium architecture. [6] · (b) Draw the schematic blocks of Floating ...
Which one you are saving by using statistical time-division multiplexing and prove · it. [16M] · 8. Give two full duplex protocols and explain their operation? [16M].
(a) Pattern plating process. (b) Tenting process. [8+8] · 7. (a) Draw the schematic diagram of magnetic amplifier with a center tapped trans- · former and D.C. ...
A reversible engine operating between a reservoir at 600 K and the ambient at- · mosphere at ... Determine the ratio of energy rejected by both the devices to the.
What is degree of reaction of a gas turbine; how it can be controlled, derive its ... A single stage free vortex turbine is designed for zero degree of reaction at root.
(b) Discuss the help of computers in Cardio vascular evaluation in ICU. [8] · 7. Discribe the use of computers for handicapped persons. Give two examples and.
TECHNIQUES OF METAL JOINING · (Metallurgy & Material Technology) · Time: 3 hours · Max Marks: 80 · Answer any FIVE Questions · All Questions carry equal ...
(b) Explain the architecture of Honeywell 60/66 multiprocessor system. [8+8] · 6. (a) Define the term nonpreemptive scheduling. With an example illustrate the.
(b) What is the purpose of providing âbondsâ in brick work. With the help of · neat sketches illustrate âEnglish bondâ. [8+8] · 2. (a) What is a âdamp-proof courseâ?
