Himanshu posted an Question
April 21, 2020 • 07:34 am 30 points
  • IIT JAM
  • Physics (PH)

Thermodynamic

solution of this??? .

3 Answer(s) Answer Now
  • 0 Likes
  • 4 Comments
  • 0 Shares
  • comment-profile-img>
    Ruby negi

    In case of constant pressure, dQ=nCpdT and dW=dQ-dU where dU=nCvdT so for calculating dW/dQ=1-Cv/Cp =1-(1/gamma) and you know gamma=7/5 in case of diatomic so u will get 1-(5/7)=2/7 your answer..

  • comment-profile-img>
    Abhishek singh Best Answer

    Option D is correct. You can directly use this formula(which I have encircled, i.e. equation 2, in my solution) if fractiom of heat converted to work at constant pressure is asked. However, I have derived the formula for your convenience. you can add this type of things directly to your notes. Best regards.

    cropped236529845287711722.jpg
  • comment-profile-img>
    Shanu arora best-answer

    answer:here is the solution attached, ans is option d .I have used here f=5 for diatomic at room temperature ,this thing have to remembered for exam purpose ,bcz without this it is difficult to do this question and rest I have just used first law . feel free for any doubts .

    cropped763203563.jpg
whatsapp-btn

Do You Want Better RANK in Your Exam?

Start Your Preparations with Eduncle’s FREE Study Material

  • Updated Syllabus, Paper Pattern & Full Exam Details
  • Sample Theory of Most Important Topic
  • Model Test Paper with Detailed Solutions
  • Last 5 Years Question Papers & Answers