null
US
Iniciar Sesión
Regístrate Gratis
Registro
Hemos detectado que no tienes habilitado Javascript en tu navegador. La naturaleza dinámica de nuestro sitio requiere que Javascript esté habilitado para un funcionamiento adecuado. Por favor lee nuestros
términos y condiciones
para más información.
Siguiente
Copiar y Editar
¡Debes iniciar sesión para completar esta acción!
Regístrate gratis
327338
Products From Oil
Descripción
Chemistry Mapa Mental sobre Products From Oil, creado por dhruvap el 04/11/2013.
Sin etiquetas
chemistry
chemistry
Mapa Mental por
dhruvap
, actualizado hace más de 1 año
Más
Menos
Creado por
dhruvap
hace casi 11 años
53
1
0
Resumen del Recurso
Products From Oil
Fractions
Cracking: Breaking down of a long chain hydrocarbon into smaller, more useful hydrocarbons
This is done by Heating the hydrocarbon until it vaporises then passing it over a heated catalyst
There is higher demand for shorter hydrocarbons
The products of cracking are a Short Chain Alkane (fuel) and a Short Chain Alkene (for polymers)
Polymerisation
Alkenes & Alkanes
When added to bromine: Alkanes have no change, Alkenes decolourise
This is because Alkanes are saturated
Ethanol can be produced in two main ways:
Fermentation: Sugar is left to ferment, with a yeast catalyst, to produce Carbon Dioxide and Ethanol. (The product is impure)
Industrial Production: React ethene with steam
Ethene + Water > Ethanol
Ethanol: C(2)H(5)OH
Alkenes are the starting materials for polymers
Polymerisation: Many small, identical Alkenes (monomers) are joined together to form a long chain Alkane (polymer)
Plastics can be distinguished into two groups
Thermosetting plastics
only soften once
chains are fixed in position by the strong bonds between them (cross-linkages)
When heated, strong bonds are formed between the chains which prevent them from being melted again.
e.g. Bakelite
Thermosoftening plastics
soften easily and can be remoulded if heated
weak forces of attraction between the polymer chains
strong forces of attraction within each chain
e.g. Polyethene
Uses an Problems of Plastics
Suitable for storing food because they are unreactive
Difficult to dispose of
do not biodegrade easily
litter goes to landfill
Cornstarch can be added to plastics to make them break down faster
Polymers can be recycled
reduces amount going to landfill
different polymers must be seperated
Polymers can be recycled
emits harmful gasses into the environment
Recursos multimedia adjuntos
gcsechem_29.gif (image/gif)
Mostrar resumen completo
Ocultar resumen completo
¿Quieres crear tus propios
Mapas Mentales
gratis
con GoConqr?
Más información
.
Similar
Using GoConqr to study science
Sarah Egan
Electrolysis
lisawinkler10
Acids and Bases
silviaod119
Elements, Compounds and Mixtures
silviaod119
Chemistry General Quiz - 2
lauren_johncock
Chemistry Quiz General -3
lauren_johncock
Chemistry Module C2: Material Choices
James McConnell
AS Chemistry - Enthalpy Changes
Sarah H-V
The Periodic Table
asramanathan
Introduction to the Atom
Derek Cumberbatch
Acids and Bases
Sarah Egan
Explorar la Librería