CHAPTER 5

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Dear friends hope that you are practicing well.
Now I am providing you with the solutions of chapter 5( First Law of Thermodynamics for flow process )

Before I start providing you the solutions I would like to give a brief introduction of this chapter.

In this chapter you have studied the difference between Eulerian and Lagrangian approach. You have also studied about SFEE(Steady Flow Energy Equation) and the method to derive it.

You have learned how to use SFEE on to different flow devices.

You have also studied about Unsteady state energy equation.
One more very important concept you have studied is the difference between mechanical energy and total energy.

So let us start:

  

 

Dear friends for a quick review of what I said above you can click the videos below where I am giving a  quick review of SFEE and USFEE along with applications.

Now starting exercise problems:

This is all I have to say on this chapter. These problems are of 4th edition. 

One more thing I want to say ( which I have also mentioned in previous post) that please do not follow the solutions blindly. firstly try yourself and if find difficulty in solving then only look the solutions.

After few days I will be publishing next chapter solutions so stay connected.

your comments are valuable to me, so please do write them. If any problem in any solution then also let me know.

Thankyou

All the Best.

CHAPTER 4

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Dear friends hope that you are practicing well.
Now I am providing you with the solutions of chapter 4( First Law of Thermodynamics)


Before I start providing you the solutions I would like to give a brief introduction to chapter.

In this chapter you have studied about how joule discovered it. You have also studied about how to interpret first law for any general process and cyclic process. But remember one thing that this chapter is dedicated to closed system only.

You have also studied about internal energy and enthalpy. A lot many students find it difficult to understand enthalpy so in my first two slides I have tried to explain it with the help of few lines from a book (reference provided). You have also learned about specific heats at constant pressure and volume in this chapter.
Dear friends for a quick review of this chapter click the videos below where I am giving a  quick review of Second law of thermodynamics.




So let us start:

Now starting exercise problems:

This is all have to say to you on this chapter. These problems are of 4th edition. 

One more thing I want to say that please do not follow the solutions blindly. firstly try yourself and if find difficulty in solving then only look the solutions.

After few days I will be publishing next chapter solutions so stay connected.

your comments are valuable to me, so please do write them. If any problem in any solution then also let me know.

Thankyou

All the Best.

CHAPTER 3

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Lot many students of Engineering specially of Mechanical description found it difficult to solve problems of engineering thermodynamics by p k nag. So I am solving it for you first of chapter 3.

Before I start showing you the solutions I am presenting you a small video on work and heat transfer for your quick revision.

VIDEO on HEAT and WORK

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SOLUTIONS

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I hope that, this will help you in developing an approach to solve problems of thermodynamics.