Gases | Chp 3 | MCQ's for MCAT, ECAT, PPSC, FPSC | first year chemistry | by Waris Hameed

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  • Опубликовано: 28 янв 2025

Комментарии • 34

  • @bushrakhan5475
    @bushrakhan5475 3 года назад +3

    very beneficial mcqs ...thank you soo much sir

  • @aym.
    @aym. 2 года назад +2

    JazakAllah sir kindly make more

    • @ChemistrybyWaris
      @ChemistrybyWaris  2 года назад +1

      Here is playlist you can find mcqs of all chapters....
      MCQ's of MCAT, ECAT, PPSC, FPSC, SSE, AND SUBJECT SPECIALIST Chemistry: ruclips.net/p/PLdLpaXa0VEh8LeeVtH-beSdss6EeSfVqy

  • @Fsc--EmanFatima
    @Fsc--EmanFatima 3 года назад +1

    Sir g that's real very beneficial for me

  • @javedbaig3859
    @javedbaig3859 4 года назад +2

    Thanks sir

  • @allahditta308
    @allahditta308 3 года назад +1

    Sir liquids and solids py bi vedio upload kr dain

  • @sampb-zone2403
    @sampb-zone2403 4 года назад +1

    Good ho gea sir

  • @minhaljhatial7429
    @minhaljhatial7429 3 года назад +2

    Sr in question 19 , density of a gas is expressed in gm/cm^3 Hoga ??
    Ye GM/dm^3 kyu Hoga , ap ye explain krdain thora

    • @ChemistrybyWaris
      @ChemistrybyWaris  3 года назад +1

      Density is commonly expressed in units of grams per cubic centimetre. You are right 👍

  • @masterzee7046
    @masterzee7046 3 года назад +1

    Nice

  • @aimanshakeel6211
    @aimanshakeel6211 4 года назад +2

    Sir how can we find that whether a gas is ideal or not? (Reference Mcq 21)

    • @ChemistrybyWaris
      @ChemistrybyWaris  4 года назад

      The gas which obeys all gas laws are called ideal. If it denny even one law than it will be non ideal.

    • @aimanshakeel6211
      @aimanshakeel6211 4 года назад +1

      @@ChemistrybyWaris Sir we are given with 3 to 4 gases so is there any trick or something by which we can choose the one which is ideal as in MDCAT we need short tricks

    • @ChemistrybyWaris
      @ChemistrybyWaris  4 года назад

      There are different factors by which we can check ideality of a gas..... gas is considered ideal if its particles are so far apart that they do not exert any attractive forces upon one another. I will explain in evening time..... When I'll be free (whatsapp +923360001291)

    • @ChemistrybyWaris
      @ChemistrybyWaris  4 года назад

      gas behaves more like an ideal gas at higher temperature and lower pressure, as the potential energy due to intermolecular forces becomes less significant compared with the particles' kinetic energy, and the size of the molecules becomes less significant compared to the empty space between them.

  • @menahilkhan8393
    @menahilkhan8393 4 года назад +1

    sir Charles law constant mean tou pressure bhi included ha

    • @ChemistrybyWaris
      @ChemistrybyWaris  4 года назад

      V directly propotional to Absolute temprature. Pressure and number of moles are constant. V = kT
      k= V/T
      It still its confusing you can ask your questions in comments

    • @Mirah168
      @Mirah168 3 года назад

      Sir is ki mjy b smj nhi aye ...
      Sir no of moles to constant ha to to Charles law us pr kesy depend kry ga agr no. of moles pr kr rha ha to phir pressure pr kue nhi kr rha

  • @yahyamian3184
    @yahyamian3184 3 года назад +1

    sir plz make this video in Urdu again

  • @HuzaifaKhan-yb9ds
    @HuzaifaKhan-yb9ds 2 года назад

    sie Q 11 ka Answer D all of above is right bcz it is mentioned in the ptb book that K depends upon same
    no of moles at same pressure

  • @ownali1990
    @ownali1990 4 года назад +1

    SIR IN KY ILLAWA OR BHI AA SAKTAY HAIN
    PLZ TELL

    • @ChemistrybyWaris
      @ChemistrybyWaris  4 года назад

      Koshish to yehe ke hy k har taraah ka MCQ attempt kren..... Mazeed apko koe questions ho to discuss kr lejyega

    • @ChemistrybyWaris
      @ChemistrybyWaris  4 года назад

      Bs thorre bhoat tabdeeli ho sakte hy

    • @Mirah168
      @Mirah168 3 года назад

      Sir graphs bna kr b wo pouch lety hn isotherm konsa ha , the behavior of fixed mass of an ideal gas wala graph btaye....
      Sir un ki smj nhi ati...
      wo b explain kr dain

  • @tariqsaeedrokhari
    @tariqsaeedrokhari 4 года назад

    MashaAllah jinaab good

  • @basiclearnings448
    @basiclearnings448 8 месяцев назад +1

    MOstly answers are wromg guys

    • @gulzaibwajid
      @gulzaibwajid 4 месяца назад

      I solve them and answers are right galat news ña orao

  • @ShahrukhKhan-fl9zu
    @ShahrukhKhan-fl9zu 2 года назад +1

    Sir question#8 ka "d" ha answer

    • @dailyquranrecitation7176
      @dailyquranrecitation7176 2 года назад

      No 8 question ka answer b hoga cuz pressure increase ho rha hai and 1 atm barhny se kafi change aaty hai volume mein means volume kafi decrease hoga

  • @aimanshakeel6211
    @aimanshakeel6211 4 года назад +1

    Slam sir..
    Sir In 9 Mcq when the pressure is increased molecules come closer so they will also occupy a significant volume. Isnt it?

    • @ChemistrybyWaris
      @ChemistrybyWaris  4 года назад

      yes it is so....!!

    • @aimanshakeel6211
      @aimanshakeel6211 4 года назад

      @@ChemistrybyWaris to sir option C b hoga na correct

    • @ChemistrybyWaris
      @ChemistrybyWaris  4 года назад

      Q.9 Gases deviate from ideal behaviour at high pressure. Which of
      the following is correct for non-ideality?
      (a) At high pressure, the gas molecules move in one direction only
      (b) At high pressure, the collisions between, the gas molecules are
      increased manifold
      (c) At high pressure, the volume of gas becomes insignificant
      (d) AT high pressure, the intermolecular attractions, become
      significant
      Betta is MCQ me c option ke statement ee galt hy... jessy ap pressure increase krty hen to volume significane o jaata hy ye ulat keh raha hy.....

  • @mtgeditz3231
    @mtgeditz3231 2 года назад

    good