Fractional distillation of air
description
Transcript of Fractional distillation of air
![Page 1: Fractional distillation of air](https://reader033.fdocuments.in/reader033/viewer/2022061516/5681452d550346895db1f32f/html5/thumbnails/1.jpg)
Fractional distillation of air
Can you carefully read through the sheet. Then condense it to 4 sentences of no more than 12 words a sentence.
Can you finish this please?
![Page 2: Fractional distillation of air](https://reader033.fdocuments.in/reader033/viewer/2022061516/5681452d550346895db1f32f/html5/thumbnails/2.jpg)
Last lesson
• Uses of carbon dioxide
• Oxides of nitrogen
• Fractional distillation of air
![Page 3: Fractional distillation of air](https://reader033.fdocuments.in/reader033/viewer/2022061516/5681452d550346895db1f32f/html5/thumbnails/3.jpg)
Uses of carbon dioxide
Fizzy drinks. The higher the pressure, the more soluble the gas becomes.
So what happens when the pressure
is released?
![Page 4: Fractional distillation of air](https://reader033.fdocuments.in/reader033/viewer/2022061516/5681452d550346895db1f32f/html5/thumbnails/4.jpg)
Uses of carbon dioxide
Dry ice (actually it’s condensed water vapour that you can see.)
![Page 5: Fractional distillation of air](https://reader033.fdocuments.in/reader033/viewer/2022061516/5681452d550346895db1f32f/html5/thumbnails/5.jpg)
Uses of carbon dioxide
Fire extinguishers
![Page 6: Fractional distillation of air](https://reader033.fdocuments.in/reader033/viewer/2022061516/5681452d550346895db1f32f/html5/thumbnails/6.jpg)
Oxides of nitrogen
Nitrogen is generally an unreactive gas, and needs fairly extreme conditions to get it to react with oxygen
![Page 7: Fractional distillation of air](https://reader033.fdocuments.in/reader033/viewer/2022061516/5681452d550346895db1f32f/html5/thumbnails/7.jpg)
Nitric oxide, NO
Lightning brings about the direct union of nitrogen and oxygen in the air to produce small amounts of nitric oxide, as does the high temperatures produced in car engines.
![Page 8: Fractional distillation of air](https://reader033.fdocuments.in/reader033/viewer/2022061516/5681452d550346895db1f32f/html5/thumbnails/8.jpg)
Nitric oxide, NO
It is a toxic air pollutant, often linked with asthma and allergic responses
![Page 9: Fractional distillation of air](https://reader033.fdocuments.in/reader033/viewer/2022061516/5681452d550346895db1f32f/html5/thumbnails/9.jpg)
Nitrous oxide, N2O
Formed when ammonium nitrate, NH4NO3, is heated. A colourless gas with a pleasing odour and sweet taste, is used as an anesthetic for minor operations, especially in dentistry.
![Page 10: Fractional distillation of air](https://reader033.fdocuments.in/reader033/viewer/2022061516/5681452d550346895db1f32f/html5/thumbnails/10.jpg)
Nitrous oxide, N2O
It is called laughing gas because of its intoxicating effect. It is alsowidely used as a propellant in aerosol cans of whipped cream!
![Page 11: Fractional distillation of air](https://reader033.fdocuments.in/reader033/viewer/2022061516/5681452d550346895db1f32f/html5/thumbnails/11.jpg)
Nitrogen dioxide, NO2
In the presence of excess oxygen, nitric oxide, NO, will be converted to nitr ogen dioxide,NO2. Nitrogen Dioxide is a reddish brown, toxic gas at room temperature. NO2 condenses to a brown liquid, but freezes to a colourless solid.
![Page 12: Fractional distillation of air](https://reader033.fdocuments.in/reader033/viewer/2022061516/5681452d550346895db1f32f/html5/thumbnails/12.jpg)
Nitrogen dioxide, NO2
Nitrogen Dioxide has been used as a catalyst in certain oxidation reactions; as a nitrating agent for organic compounds; as an oxidizing agent; as a rocket fuel; and as a flour bleaching agent
![Page 13: Fractional distillation of air](https://reader033.fdocuments.in/reader033/viewer/2022061516/5681452d550346895db1f32f/html5/thumbnails/13.jpg)
Today’s lesson
• The allotropes of sulphur
![Page 14: Fractional distillation of air](https://reader033.fdocuments.in/reader033/viewer/2022061516/5681452d550346895db1f32f/html5/thumbnails/14.jpg)
Stick it in!
Can you stick the sheet in and read the instructions?
![Page 15: Fractional distillation of air](https://reader033.fdocuments.in/reader033/viewer/2022061516/5681452d550346895db1f32f/html5/thumbnails/15.jpg)
Question
Can you answer the question please?
![Page 16: Fractional distillation of air](https://reader033.fdocuments.in/reader033/viewer/2022061516/5681452d550346895db1f32f/html5/thumbnails/16.jpg)
![Page 17: Fractional distillation of air](https://reader033.fdocuments.in/reader033/viewer/2022061516/5681452d550346895db1f32f/html5/thumbnails/17.jpg)
![Page 18: Fractional distillation of air](https://reader033.fdocuments.in/reader033/viewer/2022061516/5681452d550346895db1f32f/html5/thumbnails/18.jpg)
![Page 19: Fractional distillation of air](https://reader033.fdocuments.in/reader033/viewer/2022061516/5681452d550346895db1f32f/html5/thumbnails/19.jpg)
![Page 20: Fractional distillation of air](https://reader033.fdocuments.in/reader033/viewer/2022061516/5681452d550346895db1f32f/html5/thumbnails/20.jpg)