Anand posted an Question
August 01, 2020 • 18:48 pm 30 points
  • IIT JAM
  • Chemistry (CY)

Difference between internal energy and enthalpy and when both of them can be same?

difference between internal energy and enthalpy and when both of them can be same?

2 Answer(s) Answer Now
  • 0 Likes
  • 3 Comments
  • 0 Shares
  • comment-profile-img>
    Priyanshu kumar

    At constant volume, the heat of reaction is equal to the change in the internal energy of the system

    cropped6140698549271208635.jpg
    eduncle-logo-app

    got anand??

    eduncle-logo-app

    sometimes ∆ E is used instead of ∆U na or ∆E means total energy?

    eduncle-logo-app

    no anand Del E and Del U both for internal energy

    eduncle-logo-app

    got anand??

    eduncle-logo-app

    ys

    eduncle-logo-app

    please mark the answer 😊🙏

    eduncle-logo-app

    it's not showing option to mark

    eduncle-logo-app

    thank you option is given check

  • Suman Kumar Best Answer

    When PV work for a system is zero then Enthalpy is equal to internal energy

    eduncle-logo-app

    See

  • Suman Kumar best-answer

    When change in Energy for a system is calculated at constant volume then it is internal energy. At constant pressure it is enthalpy

    eduncle-logo-app

    When PV work for a system is zero then Enthalpy is equal to internal energy

    eduncle-logo-app

    when they give us like heat of a reaction means we can consider it as enthalpy?

    eduncle-logo-app

    Yes Anand as most of reaction takes place at constant pressure

    eduncle-logo-app

    kk

    eduncle-logo-app

    But if mentioned the volume is constant then do the problem accordingly

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