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Download 4b Fire

• This document can be freely copied and amended if
  used for educational purposes. It must not be
  used for commercial gain. The author(s) and web
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  stands or whether adapted in any way.
• Subject Knowledge Matter 2 Change (download
  k3.2_4.0b). Authored by Alan Goodwin. Accessed
  from http//www.ase.org.uk/scitutors/ date
  created May 2006

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Learning about FIRE Safely

• Alan Goodwin,
• a.goodwin_at_mmu.ac.uk

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(No Transcript)
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PHLOGISTON

• This is the substance that you can see being
  given off when something burns quickly.
• This idea can explain quite a lot of
  observations.
• A major problem is that things actually get
  heavier when they burn although this is often
  not obvious.

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Ignition Temperature
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C O2 CO2
Energy released/transferred
2H2 O2 2H2O
Energy released/transferred
3Fe 2O2 Fe3O4
Energy released/transferred
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C8H18 17O2 8CO2 9H2O Energy
released
COMBUSTION
OCTANE
C6H12O6 6O2 6CO2 6H2O Energy
released
RESPIRATION
GLUCOSE
6CO2 6H2O C6H12O6 6O2
Energy required
PHOTOSYNTHESIS
GLUCOSE
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The Fuel-Oxygen system for transfer and
degradation of energy. From CD Ross (2004)
Atmosphere
This slide was prepared by Keith Ross