C1-Carbon Chemisty Flashcards
What are the difficulties associated with the finite nature of crude oil?
Finding replacements
All the readily extractable resources will be used up in the future
List the order of the fractional distillation column from the lowest boiling point to the highest ?
LPG,Petrol,Paraffin,Diesel,Heating oil,fuel oils,Bitumen
Why can crude oil be separated?
Because the hydrocarbons in different fraction have differently sized molecules
how can unstable countries cause problems for UK citizens regarding oil
oil-producing countries can raise their prices and cause problems for non-oil prodcuing countries
what fraction is used to make medicines
naphtha
what is the process of cracking
cracking turns large alkane molecules into smaller alkene molecules
why are alkene molecules used to make polymers
because they have a double bond
why does craking help oil manufactures
cracking helps oil manufactures meet demand with products like petrol
why are goverments concerned about the amount of fossil fuels being burned
increasing carbon dioxide emissions
burning a hydrocarbon in plenty of air produces?
carbon dioxide and water
define complete combustion
Complete combustion occurs when a fuel burns in plenty of oxegen
Does incomplete combustion or complete comvbustion prodcue more enrgy
Complete combustion
what two things are made during incomplete combustion
toxic gas (carbon monoxide) and soot (carbon)
what are the word equations for incomplete combustion are;
fuel+oxegen->carbon monoxide +water
OR
fuel +oxegen->carbon +water
what is the balanced symbol equation for complete combustion
CH,4+2O,2->CO,2+2H,2O
what is the balanced symbol equation for incomplete combustion
2CH,4+3O,2->2CO+4H,2O
OR
CH,4+O,2->C+2H,2O
what is the percentages of clean air
78%nitrogen,21%oxygen,and of the remaining 1% 0.035 is carbon dioxide
why do the percentages of clean air change very little
becasue there is a balence between the processes that use them up and make both carbon dioxide and oxzegen
what 2 things have made the percentage of carbon dioxide increase
- deforestation as more forests are cut down , less photosynthesis takes place
- increased population the worlds energy requirements increse
what is one theory for how oceans formed and how the current percentages of the atmosphere came about
The atmosphere was originally rich in water vapour and carbon dioxide nitorgen slowly increased \nd being unreactive little was ever removed
sulfur dioxide is a pollutant that causes difficulty for people with ?
asthma
Sulfur dioxide can also form ?
acid rain that damages wildllife and buildings made form limestone
A catalytic converter changes carbon monoxide to
Carbon dioxide
inside a catalylic converter a reaction between ……………………………. takes place
nitric oxide and carbon monoxide
inside a catalylic converter a reaction between ……………………………. takes place the two gases formed are natural components of air
nitorgen and carbon dioxide