Difference between revisions of "Ethene"
| (2 intermediate revisions by the same user not shown) | |||
| Line 41: | Line 41: | ||
===References=== | ===References=== | ||
| − | ==== | + | ====Edexcel==== |
| − | :[https://www.amazon.co.uk/gp/product/ | + | :[https://www.amazon.co.uk/gp/product/1782946748/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946748&linkCode=as2&tag=nrjc-21&linkId=a4f0348fc37d0ba1bb52d27f8679581f ''Ethene, page 75, GCSE Biology; The Revision Guide, CGP, Edexcel ''] |
| − | + | ||
| − | + | ====OCR==== | |
| − | + | :[https://www.amazon.co.uk/gp/product/0198359810/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359810&linkCode=as2&tag=nrjc-21&linkId=d768d99f1a06f7c12fab40e5aef85a55 ''Ethene, pages 112-113, Gateway GCSE Biology, Oxford, OCR ''] | |
| − | :[https://www.amazon.co.uk/gp/product/ | ||
| − | |||
| − | |||
| − | |||
Latest revision as of 15:19, 6 December 2019
Contents
Key Stage 3
Meaning
Ethene is a gaseous (at room temperature) hydrocarbon with chemical formula C2H4.
About Ethene
- Ethene is hydrocarbon because it contains only Hydrogen and Carbon atoms.
- Ethene can be oxidised to produce Carbon Dioxide and Water.
- Ethene + Oxygen → Carbon Dioxide + Water
Key Stage 4
Meaning
Ethene is a gaseous (STP) alkene with chemical formula C2H4.
About Ethene
| Chemical Formula (CnH2n) | Structural Formula | Structural Diagram | Ball and Stick Model |
| C2H4 | CH2CH2 |  |
 |
- Ethene is hydrocarbon because it contains only Hydrogen and Carbon atoms.
- Ethene has a double bond between the two Carbon atoms.
- Ethene is described as 'unsaturated' due to the double bond as it is not completely 'saturated' by Hydrogen atoms like Ethane.
- Ethene can be oxidised to produce Carbon Dioxide and Water.
- Ethene + Oxygen → Carbon Dioxide + Water
\(C_2H_4 + 3O_2 → 2CO_2 + 2H_2O\)
Ethene as a Plant Hormone
- The ripening of fruit is controlled by ethene.
- Ethene also affects the rate of cell division.
Using Ethene as a Plant Hormone
- To make fruit last longer they are harvested before they are ripe. When the farmer wants to sell them they put ethene gas in their container causing them to ripen.