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OCR A Chemistry F322 Chains, Energy and Resources Thu 19 Jan 2012

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    Hey! are we all askng questions to help with revision here?
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    (Original post by dee11)
    Hey! are we all askng questions to help with revision here?
    sure
    Got any?

    Oh and answer mine while you're at it
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    (Original post by darkxangel)
    correct.

    Suggest uses for polymer waste and how we can get rid of it (6)

    How can waste hydrogen be used (in what process)? (2)
    Where are you getting all these questions from?

    Are they PP questions?
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    has anyone got a link to the specimen paper?
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    (Original post by feather18)
    hey does anyone know where i can get june 2011 f322 past paper?
    http://www.a-levelchemistry.co.uk/OC...resources.html

    Scroll down to find the past paper and MS for June/Jan 2011
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    yo yo yo let the revision begin throw some questions at me my chemists all stars!!!!!!!!!!! g star 4 lyf
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    (Original post by Lindizya)
    has anyone got a link to the specimen paper?

    http://www.ocr.org.uk/download/asses..._unit_f322.pdf

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    (Original post by zainahmed)
    yo yo yo let the revision begin throw some questions at me my chemists all stars!!!!!!!!!!! g star 4 lyf
    whats everything you know about polymers?
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    (Original post by darkxangel)
    correct.

    Suggest uses for polymer waste and how we can get rid of it (6)

    How can waste hydrogen be used (in what process)? (2)
    Haber process, what else?
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    (Original post by splendidsun)
    Where are you getting all these questions from?

    Are they PP questions?
    my brain
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    thank you!
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    (Original post by darkxangel)
    How does a catalytic converter work? (4)
    - adsorption of reactants
    - bonds weaken
    -desorption of products
    the formula
    NO+CO GIVE 1/2N2+CO2
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    (Original post by LifeIsGood)
    Haber process, what else?
    Margarine production
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    (Original post by splendidsun)
    whats everything you know about polymers?
    polymers are made up of monomers which is an alkene
    polymer waste is a problem lack of space in land fills etc
    we can recycle them which involves sorting and reclamation
    scientists are begining to develop biodegradeable plastics
    we should recycle polymenrs
    burning old polymers can also be a good fuel cource but this produce co2
    polmer waster can also be used in feedstock recycling
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    (Original post by splendidsun)
    Margarine production
    Hydrogenation of margerine to be exact
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    (Original post by splendidsun)
    sure
    Got any?

    Oh and answer mine while you're at it
    Biofuels are fuels such as ethanol, methanol? which i think burn more cleanly so have environmental benefits and are also are looking to replace the finite sources we have now

    adv of fermentation; low temperatures and pressures used so less energy,

    disad of fermenation; not 100% atom economy, only 14% conversion

    adv of hydration of ethene; 100% atom eeconommy achieved

    disadv of hydration of ethene; high temperatures and pressure used, which could be a health risk for workes

    anything ive missed out??
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    (Original post by zainahmed)
    yo yo yo let the revision begin throw some questions at me my chemists all stars!!!!!!!!!!! g star 4 lyf
    State two factors that affect the contibution of a greenhouse gas to global warming?
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    Im struggling with halogenoalkanes what does evryone know about them?
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    (Original post by dee11)
    Biofuels are fuels such as ethanol, methanol? which i think burn more cleanly so have environmental benefits and are also are looking to replace the finite sources we have now

    adv of fermentation; low temperatures and pressures used so less energy,

    disad of fermenation; not 100% atom economy, only 14% conversion

    adv of hydration of ethene; 100% atom eeconommy achieved

    disadv of hydration of ethene; high temperatures and pressure used, which could be a health risk for workes

    anything ive missed out??
    nooope but i think the general definition for biofuels is fuels that have been made from recently living materials like plants
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    (Original post by dee11)
    State two factors that affect the contibution of a greenhouse gas to global warming?
    the amount of radiation it can absord i think its infared radiation? correct me if am wrong

    and its relative concentration in the atmosphere

    the amount a gas has and effect is measured by its GWP global warming potential score

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