Friday, 5 August 2016

CHAPTER 4
-------------------





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.



Posted by at

6 comments:

  1. Swati Agrawal Jaiswal6 August 2016 at 03:14

    Great contribution, Pankaj Sir! Indeed very fruitful to the students!! I appreciate your idea of teaching this way. Wish you best.

    ReplyDelete
  2. Unknown6 August 2016 at 03:21

    Thankyou Madame for your kind words of appreciation.

    ReplyDelete
  3. amiya6 August 2016 at 09:02

    Good work keep it up. This will be of great help to GATE and ESE aspirants.

    ReplyDelete
  4. Gaurav7 August 2016 at 05:03

    Great initiative ! Keep Posting.

    ReplyDelete
  5. Unknown20 February 2017 at 08:13

    Thank you pankaj sir..

    ReplyDelete
  6. Hitish 13 June 2019 at 04:43

    Sir, in question 4.11, it is mentioned that it's an adiabatic process; hence, we did not assume it to be quasi-static. But, if a process is not quasi-static, then how can we even know what relation of p-v it follows. It's mentioned in the question that it follows pv^1.2=constant. But if a process is not quasi-static, that means it's not at equilibrium in each stage. Then, how can we even get the trace of the path it follows?

    ReplyDelete

Subscribe to: Post Comments (Atom)