A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

If you do 1,000 J of work on a system and remove 500 J of heat from it, what is the change in its internal energy? -1500 J, -500 J, 500 J, or 1500 J thank you!!

  • This Question is Closed
  1. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    here we have to apply the first principle of thermodynamics: \[\Large Q = L + \Delta U\] where \Delta U is the internal energy change

  2. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    okay!! so 1000+500? so the solution is 1500 J ?

  3. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    more explanation: since do the work L on the thermodynamic system, then L=-1000 J, namely it is negative, so we have: 500=-1000+ \Delta U then: \Delta U = 1500 Joules so your answer is correct!

  4. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    oops.. since we do the work on the thermodynamic system...

  5. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    oooh yay!! :D thank you:)

  6. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    thank you!! :)

  7. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.