Vaishnavi Academy

Introduction and 1st Law
1. Define Thermodynamic system, thermodynamic cycle, reversible process,
thermodynamic work, thermodynamic equilibrium, intensive and extensive
properties.[Notes pg- 2,3]
2. Differentiate between open, closed and isolated system.[Notes pg- 2]
3. Derive expression for work done and heat transfer in polytropic process.[ Notes pg- 27]
4. Prove that Internal Energy is property of the system.[ Notes pg- 16]
5. Derive eqn for Steady flow process, explain significance of each terms in it. Apply it to
nozzle and turbine.[ Notes pg-32,33]
6. Differentiate between Non-flow and Flow process. What is steady flow process.[ Notes
pg-31]
7. A system receives 50KJ of heat while expanding with volume change oh 0.14m 3 against
an atmosphere of 1.2 x 105 N/m2. A mass of 90kg in the surrounding is also lifted
through a distance of 5.5m during this change. (i) Find the change in the energy of the
system. (ii) If the system is returned to its original volume by an adiabatic process which
requires 110 Kj of work. Find the change in the energy of the system. For the combined
process (i) and (ii) find the change in energy of the system.[Prob Soln – Q5]
8. Prob SFEE- Turbine.[Prob Soln – Q12]
9. Prob SFEE- Compressor+Turbine.[Prob Soln – Q14]

2nd Law & Entropy
10. State and explain the equivalence of Kelvin-Plank statement and Clausius statement. [
Notes pg- 44]
11. Show that entropy is a property of the system. [ Notes pg- 52]
12. Define COP of HP and Ref, and derive the relationship between them. [ Notes pg-43]
13. State the principle of increase of entropy of the universe, discuss anyone application. [
Notes pg-54]
14. Limitations of 1st law of thermodynamics. [ Notes pg-41]
15. Define entropy and derive clausius inequality. [ Notes pg-51,52]
Thane,Bhivpuri
Prepared By- Prof. R.G.
Tel- 022-65617026
Vaishnavi Academy
16. Show that efficiency of all heat engines operating between same temp limits is same. [
Notes pg-48]
17. Define- Heat Engine, Refrigerator and Heat Pump. [ Notes pg-43]
18. Prob- Classify Reversible, irreversible and impossible cycle. [Question Set- Pg 4 Q3]
19. Prob- Process a->b-> c -> d. Calculate overall ∆S and ∆S for each process. [Question SetPg 5 Q19]
20. Prob- HE+Ref [Question Set – Pg 32, Q3,b]
21. Prof- HE+HP with efficiency of both. [Question Set- Pg 4 Q10]

Availability & Property Relations.
22. Define Availability(available energy), unavailability(unavailable energy), dead state,
irreversibility. [ Notes pg- 59,62]
23. Explain Joule’s experiment. Define Joule-Thompson coefficient.
24. Derive eqn of availability for steady flow system/non-flow process. [ Notes pg- 62,63]
25. State Clausius-Clapeyron eqn. [ Notes pg- 64]
26. Prob- AE; I, W[Question Set- Pg 6 Q4]
27. Prob- ∆S; AE[Question Set- Pg 18 Q5c]
28. State and explain Maxwell’s relation.
Batches for SEM-4 Mechanical by Prof. R. G., starting from 4th Jan.
Subjects offered- Fluid Mechanics (FM);
Theory of Machines-I (TOM-I); Maths-4(M-4)

Gas Power Cycles
29. What is cut-off ratio? How does it affect air standard efficiency.
30. State Assumptions of air std cycle.
31. State and prove carnot theorem. Derive eqn of its efficiency.
32. Derive an expression for efficiency of diesel cycle/dual cycle.
33. Compare otto, diesel and dual cycle.
34. Prob-Dual Cycle
35. Prob-Diesel Cycle
𝑇
36. Show that- Rc = ( 2 )1.25 for max work in otto cycle.
𝑇1

Properties of Pure Substances and Vapour Power Cycle
37. Define- Dryness fraction, Saturation temp., Specific steam consumption, critical ppint,
triple point, degree oh superheat, Latent Enthalpy
38. Sketch the rankine cycle on P-V and T-S dgm.
39. What is the effect of reheat.
40. Differentiate between Carnot and Rankine cycle.
41. Draw schematic of thermal plant with one reheat
42. Prob- Calculate Properties of Steam for P=10 bar and v= 0.0013576 m3/kg
43. Prob-Rankine Cycle/ Reheat
Thane,Bhivpuri
Prepared By- Prof. R.G.
Tel- 022-65617026
Vaishnavi Academy

Reactive System
44. Define Adiabatic Flame Temperature. Explain its significance.
45. Explain- Enthalpy of Reaction, Enthalpy of Formation, Air-Fuel Ratio and Heating Value.
46. Prob- Calculate Composition of fuel, A/F ratio, % excess of air.
Thane,Bhivpuri
Prepared By- Prof. R.G.
Tel- 022-65617026