Energy Balance in Closed Systems | Thermodynamics | (Solved examples)

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  • Опубликовано: 22 авг 2024

Комментарии • 33

  • @Tyrantscandrive
    @Tyrantscandrive 10 месяцев назад +2

    could not thank you enough my g you are going to be the reason why I ace the mid term test on thursday its currently 1:36 am and its technically wednesday my test is on thursday thank you again

    • @QuestionSolutions
      @QuestionSolutions  10 месяцев назад +1

      I am glad it was helpful. Keep up the awesome work and I hope you do amazingly on your midterm test!

  • @portersspeedshop2779
    @portersspeedshop2779 4 месяца назад +1

    I would travel to the ends of the earth and fight enemy's beyond my comprehension for you. Thank you so much!

    • @QuestionSolutions
      @QuestionSolutions  4 месяца назад +1

      Wow! If ever the need arises, I will call upon you to fight by my side. Thank you for the funny but warming comment. Keep up the great work and best wishes with your studies.

    • @muheezolamilekan9818
      @muheezolamilekan9818 4 месяца назад +1

      Bro be saving lives fr

  • @JesusMartinez-zu3xl
    @JesusMartinez-zu3xl Год назад +1

    wow!! I'm currently reviewing some thermo concepts for heat transfer and you made this so easy!! thank you!

    • @QuestionSolutions
      @QuestionSolutions  Год назад +1

      Thank you and you're very welcome! Keep up the great work.

  • @cardempire360
    @cardempire360 2 года назад +4

    I'm always here, I'm just like a watchman fr question solutions.😂😂😂😂❤

  • @Brooklyngilberto
    @Brooklyngilberto 2 года назад +2

    thank you!!! these videos are very helpful

    • @QuestionSolutions
      @QuestionSolutions  2 года назад +1

      I am really glad to hear that! Best wishes with your studies.

  • @josephisrael8959
    @josephisrael8959 2 года назад +2

    Why was a potentially changing quality considered in the second example but not in the first one, considering both situations are identical (two fluid mixtures in a sealed rigid tank being heated up)?

    • @QuestionSolutions
      @QuestionSolutions  2 года назад

      You could do it that way, but we used a super heated vapor table to figure out the second value, so we didn't need the quality change in the first example. In the 2nd example, we used the same equation we used to find U1 to find U2 so we needed the new quality value. Two different methods were used.

    • @josephisrael8959
      @josephisrael8959 2 года назад

      @@QuestionSolutions So essentially, you only consider a quality change when the value of U2 can be directly found from the table without having to extrapolate it like you did in the 1st example?

    • @QuestionSolutions
      @QuestionSolutions  2 года назад +1

      @@josephisrael8959 You can do it either way depending on whether you have the necessary table or not. So it boils down to what is given, and what method you find is easier.

    • @josephisrael8959
      @josephisrael8959 2 года назад

      @@QuestionSolutions That clarifies things. Thank you very much.

    • @QuestionSolutions
      @QuestionSolutions  2 года назад

      @@josephisrael8959 You're very welcome!

  • @JGambrosia
    @JGambrosia 8 месяцев назад +1

    Just wondering, what is specifically is evaporation internal energy? Is it the internal energy of a liquid undergoing evaporation? Maybe the internal energy of a liquid already evaporated (gas)?

    • @QuestionSolutions
      @QuestionSolutions  8 месяцев назад

      Sorry, where are you referring to? Please provide me a with a timestamp. Thanks!

    • @JGambrosia
      @JGambrosia 8 месяцев назад

      @@QuestionSolutions i’m referring to 4:12 u_fg.

    • @JGambrosia
      @JGambrosia 8 месяцев назад

      @@QuestionSolutions please help 🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏

    • @QuestionSolutions
      @QuestionSolutions  8 месяцев назад

      @@JGambrosia It's the change in internal energy during evaporation. Easy way to remember is to see that it's actually just the difference between Ug and Uf, so
      Ug - Uf = Ufg.

  • @muheezolamilekan9818
    @muheezolamilekan9818 4 месяца назад

    Hello, in the second example you used the same equation to find the U1 and U2 by using the table and finding a new quality but did it differently in the first, is there a reason for that or both can be applied. Thank you very much for the videos

    • @QuestionSolutions
      @QuestionSolutions  4 месяца назад +1

      So you can actually use multiple methods to get to the same answer. I try to show as many as I can, sometimes, I focus on one method, other times, multiple ones. Usually, it's easier to use one over the other, but that doesn't mean it's not useable. Use whichever method you'd like :)

    • @muheezolamilekan9818
      @muheezolamilekan9818 4 месяца назад

      @@QuestionSolutions Oh alright, thanks a lot for the quick reply.

  • @narendradc2402
    @narendradc2402 Год назад +1

    do you think in the last problem you missed showing a dot? it is about rate of change.

  • @AA-ej4jv
    @AA-ej4jv 2 года назад

    Need Air Compressor & Nozzle lectures.

    • @QuestionSolutions
      @QuestionSolutions  2 года назад +2

      That's far ahead because those topics fall under power cycles. I hope to get them done, but we will see 👍

  • @coreyfarrell7347
    @coreyfarrell7347 2 года назад

    I wish I could give you my university tuition, as you help more than my professors

    • @QuestionSolutions
      @QuestionSolutions  2 года назад +1

      😅 Haha, but on a more positive note, I am really glad these videos help you out.

  • @7mood3bdullah47
    @7mood3bdullah47 5 месяцев назад +1

    how do you know q+w but you write q-w

    • @QuestionSolutions
      @QuestionSolutions  5 месяцев назад

      I don't know where you're referring to. Please use timestamps.