OCR A 5.2.2 Enthalpy and Entropy REVISION

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  • Опубликовано: 17 окт 2024
  • Complete revision for OCR A A Level Chemistry. To buy PowerPoint used in this video please visit my tes shop - www.tes.com/te...

Комментарии • 25

  • @Ts-gc3fh
    @Ts-gc3fh 4 месяца назад +1

    I LOVE YOU i don’t how i would have passed chem this year without u

  • @cyberblader_2549
    @cyberblader_2549 Год назад +2

    Thank you so much :) Your revision videos are so good and really helped me in my chem exam!

  • @shyamkanjee6409
    @shyamkanjee6409 4 года назад +24

    Such strange times would’ve been hard at work, but no exams. Class of 2020 is a shambles. Still watched the video though 👍🏽

    • @AlleryChemistry
      @AlleryChemistry  4 года назад +6

      Thanks for watching! It is strange times we live in. We'll get through it though.

    • @shyamkanjee6409
      @shyamkanjee6409 4 года назад +11

      @@AlleryChemistry I want to also personally thank you. You've helped me so much during A-levels.
      I'll give you an update on what grade I get in August!

    • @AlleryChemistry
      @AlleryChemistry  4 года назад +1

      You're very welcome!

    • @jds5142
      @jds5142 4 года назад +13

      @@shyamkanjee6409 What did you get?

    • @Haris-qo1hx
      @Haris-qo1hx 9 месяцев назад

      @@jds5142he flopped

  • @zzey
    @zzey 2 года назад +7

    I thought entropy was measured in Jmol-1 and that all the other values are meant to measured in Jkmol-1 so you /1000 entropy to convert it to jkmol-1

  • @spp5228
    @spp5228 Год назад +4

    In OCR A chemistry do we need to know how to graph entropy?

  • @alyssaketibuah761
    @alyssaketibuah761 Год назад +4

    Love your videos !! Were you not meant to convert the temperature of the 34 to K ?

    • @AlleryChemistry
      @AlleryChemistry  Год назад +5

      No need, as it is a temperature change, then the value is the same in K as it is in degrees Celsius. If you are stating a temperature and not a change, then you do need that converted to Kelvin. 👍

  • @aosman1838
    @aosman1838 3 года назад +14

    on the example when calculating enthalpy change at 17:55, you didn't change the temperature from degrees to kelvin.

    • @skittlesboy8033
      @skittlesboy8033 3 года назад +13

      It’s cus he’s working out change in temperature so it doesn’t matter if it’s degrees or Kelvin u get the same thing

    • @mels4371
      @mels4371 3 года назад +4

      when calculating change in temp it doesnt matter i its in degrees or kelvin cos the change would still be the same

  • @SITAE.
    @SITAE. 3 года назад +7

    Thank you for this informative video sir

  • @neyney_baneyney
    @neyney_baneyney Год назад +2

    in 22:22, why was the q turned into a minus?

    • @paarthningoo1155
      @paarthningoo1155 5 месяцев назад +1

      because it was an exothermic reaction

  • @LeahRebecca
    @LeahRebecca 4 года назад +14

    really appreciate your videos!!

  • @omshivakotkar8117
    @omshivakotkar8117 3 года назад +2

    Thanks sir

  • @exrth9209
    @exrth9209 3 года назад +2

    Amzaaaaaa bet youre reading this