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    Just a thread for any discussion/questions/predictions on the exam coming up! Feel free to comment


    REALISED I'VE WRIITEN JULY INSTEAD OF JUNE
    SORRYY

    my brain is skipping months already
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    What do you think the six markers will be?
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    [QUOTE=EllieBear;48028092]What do you think the six markers will be?

    Not 100% sure but it could be on:

    Limestone and quarrying
    structure of the earth
    how the atmosphere changed over time
    the miller-urey experiment
    fractional distillation

    But, tbh it could be on ANYTHING, so revise everything to be on the safe side :cool:
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    why revise now if exam is in july
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    Isn't the exam on the 10th of June, not July?


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    (Original post by DragonSlayer666)
    why revise now if exam is in july
    lol its in 2 days m8
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    (Original post by Alextaylor6)
    lol its in 2 days m8
    i meant it as a joke cause title has wrong month m8
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    (Original post by DragonSlayer666)
    i meant it as a joke cause title has wrong month m8

    aren't jokes meant to be funny m8?
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    (Original post by tsr1807)
    Isn't the exam on the 10th of June, not July?


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    Yup , you're correct (my mistake )
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    Could someone who knows more than me about fractional distillation tell me whether this answer would be worth 3 marks on the chemistry C1 paper? This is from the 2013 paper.

    This question is about oil reserves.
    Diesel is separated from crude oil by fractional distillation.
    Describe the steps involved in the fractional distillation of crude oil.

    MY ANSWER:
    The crude oil is heated up.
    It is allowed to condense at a range of different temperatures.
    It then forms fractions.

    If that isn't enough, how could I improve it to make it worth 3 marks?


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    (Original post by tsr1807)
    Could someone who knows more than me about fractional distillation tell me whether this answer would be worth 3 marks on the chemistry C1 paper? This is from the 2013 paper.

    This question is about oil reserves.
    Diesel is separated from crude oil by fractional distillation.
    Describe the steps involved in the fractional distillation of crude oil.

    MY ANSWER:
    The crude oil is heated up.
    It is allowed to condense at a range of different temperatures.
    It then forms fractions.

    If that isn't enough, how could I improve it to make it worth 3 marks?


    Posted from TSR Mobile
    After the crude oil is heated, most of the compounds in the crude oil evaporate. Any liquids flow down to the bottom of the fractionating column and the hot vapours rise up the column.
    When the hot vapours rise up the column, the vapours cool. When a fraction in the vapours cools to its boiling point, the fraction condenses. The condensed fraction separates and flows out through a pipe.
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    (Original post by aerohotchoc)
    After the crude oil is heated, most of the compounds in the crude oil evaporate. Any liquids flow down to the bottom of the fractionating column and the hot vapours rise up the column.
    When the hot vapours rise up the column, the vapours cool. When a fraction in the vapours cools to its boiling point, the fraction condenses. The condensed fraction separates and flows out through a pipe.
    Well that's a lot better than my original answer thank you😀


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    (Original post by tsr1807)
    Well that's a lot better than my original answer thank you


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    No problem I found it on a past C1 paper so it's bound to be accepted by AQA
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    Can someone plz explain
    1) locked up carbon
    2) miller urey experiment
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    Off the top of my head:

    Limestone cycle & Rotary Lime kiln
    Cement, concrete and mortar
    Impacts of quarrying limestone
    Metals
    Extraction types + impacts
    Alloys
    Plant oils
    Emulsifiers
    Plate tectonics
    Atmosphere
    Cracking hydrocarbons
    Fractional Distillation
    Alkanes & Alkenes
    Polymers

    GOOD LUKC
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    Carbon used to be locked up in fossil fuels etc and it returned when burnt. It was also dissolved in oceans and absorbed by plants
    Miller Urey experiment was where they created an electric shock in some gases like ammonia and nitrogen and carbon, due to what happened ages ago when lighting struck in the atmosphere and created amino acids. They left the product for a week and after they saw it created amino acids, not all that are present in today but it had made some. This is what is believed to happen in the early atmosphere, which created amino acids which led on to other organisms being made etc.
 
 
 

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