Qualification > Sciences
Chemistry P3 7/6/2010
destructor:
--- Quote from: J.Darren on May 31, 2010, 04:19:25 am ---Organic Chemistry
Fuels :
- Coal
- Natural gas (Methane)
- Petroleum (Crude oil)
Fractional distillation:
N/A - Refinery gas (used as a fuel)
30 degree celsius - Gasoline (used as a fuel in cars)
110 degree celsius - Naphtha (used as make chemicals)
180 degree celsius - Kerosene / Paraffin (used as a fuel in jet engines)
260 degree celsius - Diesel oil / Gas oil (used as a fuel in diesel engines)
N/A - Fuel oil (used as a fuel for ships and for home heating systems)
N/A - Lubricating oil (used in waxes and polishes)
N/A - Bitumen (used as a fuel in jet engines)
Homologus series :
- Trend in physical properties
- Same general formula
- Same functional group
- Similar chemical properties
- Differs from its neighbouring member by CH2
Properties of Alkanes :
Saturated hydrocarbons
General formula : CnH(2n+2)
Increase in boiling point
Physical state at room temperature : Gas > Liquid > Solid
Combustion of alkanes :
Gives CO2 and water, incomplete combustion will give CO and water.
Subsitution reaction :
Condition - Bright light (Photochemical)
Alkanes react with chlorine to give a mixture of chloroalkanes. One hydrogen atom is subsituted by one chlorine atom.
Methane + Chlorine -> Chloromethane (CH3Cl) + HCl
--- End quote ---
Amazing stuff Darren
u summarized the whole chapter!
thanks a lot man
dude u forgot one more thing
in halogenation
u also need lead tetraethyl and a high temprature
UV/Bright light is the main answer though
thanks anyway dude :)
J.Darren:
--- Quote from: Kimo Jesus on May 31, 2010, 07:30:08 pm ---i was gonna start mine 2mrw :(
i guess u go on with this :/ ill make another
--- End quote ---
Perhaps we should collaborate or something ... I am hopeless at drawing diagrams, would you be kind enough to provide illustrations on branched alkanes?
J.Darren:
--- Quote from: destructor on June 01, 2010, 08:26:23 am ---Amazing stuff Darren
u summarized the whole chapter!
thanks a lot man
dude u forgot one more thing
in halogenation
u also need lead tetraethyl and a high temprature
UV/Bright light is the main answer though
thanks anyway dude :)
--- End quote ---
Not even close :D Still got alcohol, alkanoic acid and ester ... Not to mention addition and condensation polymerisation *sigh*
Ivo:
--- Quote from: J.Darren on June 01, 2010, 01:04:04 pm ---Perhaps we should collaborate or something ... I am hopeless at drawing diagrams, would you be kind enough to provide illustrations on branched alkanes?
--- End quote ---
Do you mean something like this:
http://www.hpwt.de/Chemie/Alkanee.gif
J.Darren:
--- Quote from: Ivo on June 01, 2010, 01:43:14 pm ---Do you mean something like this:
http://www.hpwt.de/Chemie/Alkanee.gif
--- End quote ---
Yea but when you ... well branch it, say for butane we can have ... methylpropane, if you catch my drift LOL.
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