1. May 13, 2016 #1

   vijayramakrishnan

   

   1. The problem statement, all variables and given/known data
   Please see the attached image
   
   2. Relevant equations
   pv=nRT
   
   
   3. The attempt at a solution
   
   i don't know how to calculate the work done by the gas in the question and i calculated the change in internal energy.

    

   Attached Files:

   • 

     DSC_0549 (1).JPG

     File size:

     50.7 KB

     Views:

     151

   Last edited: May 13, 2016

   vijayramakrishnan, May 13, 2016
2. 
   Phys.org - latest science and technology news stories on Phys.org

   • • Oleo Sponge successful in real-world conditions off California coast
   • • Close-ups of grain boundaries reveal how sulfur impurities make nickel brittle
   • • Solutions to water challenges reside at the interface
3. May 13, 2016 #2

   Chestermiller

   

   Insights Author

   Staff: Mentor

   This same exact problem appeared in Physics Forums a couple of months ago. Does anyone remember who the OP was or what the title was?

    

   Chestermiller, May 13, 2016
4. May 13, 2016 #3

   vijayramakrishnan

   

   i would be gratified if you could give me the link sir

    

   vijayramakrishnan, May 13, 2016
5. May 14, 2016 #4

   Chestermiller

   

   Insights Author

   Staff: Mentor

   I just don't remember.

    

   Chestermiller, May 14, 2016
6. May 14, 2016 #5

   ehild

   

   Homework Helper

   Work done on a spring by an ideal gas, involving piston and spring
   posted by Titan97, Feb 8 2016
   https://www.physicsforums.com/threads/thermodynamics-problem-involving-piston-and-spring.856157/
   There was an other one, about work done by a gas on a spring.
   
   https://www.physicsforums.com/posts/4283379/

    

   Last edited: May 14, 2016

   ehild, May 14, 2016
7. May 14, 2016 #6

   Chestermiller

   

   Insights Author

   Staff: Mentor

   You're wonderful!!!!

    

   Chestermiller, May 14, 2016
8. May 14, 2016 #7

   ehild

   

   Homework Helper

   It was only that I have much less posts than you, to search

    

   ehild, May 14, 2016
9. May 15, 2016 #8

   vijayramakrishnan

   

   thank you very much sir

    

   vijayramakrishnan, May 15, 2016
10. May 15, 2016 #9

    SammyS

    

    Staff Emeritus

    Science Advisor

    Homework Helper

    Gold Member

    And she comes through, again !!!

     

    SammyS, May 15, 2016
11. May 19, 2016 #10

    vijayramakrishnan

    

    yes sir this a question from iit jee exam 2015

     

    vijayramakrishnan, May 19, 2016

• Log in with Facebook
• Log in with Twitter

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in