A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

what informations we can know from energy level diagram "exothermic / endothermic" ?

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

    Exothermic reactions are reactions where heat is lost to the surroundings. So the enthalpy is negative. Endothermic reactions are reactions which where heat is absorbed. So The enthalpy is positive.

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

    We know enthalpy change = enthalpy of products - enthalpy of reactants.

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

    We can also know about the reaction type. If the energy of products are high it is endothermic. If the energy of products are low it is exothermic. !

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

    So ya what do u think @Woodward

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

    thanks @Rushwr helpful :)

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

    anytym :)

  7. Photon336
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @meme1298 look at the following graph; |dw:1442429214134:dw| notice that the exothermic reaction the energy for the products is lower than the reactants, this means that energy has left our reaction or been released. We do this by taking the Delta H = H products - H reactants. notice for the endothermic reaction that the products have more energy, at a higher position than the reactants

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

    thanks @Photon336 very helpful

  9. 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.