Tuesday, 7 May 2013

2.23 explain the use of carbon dioxide in carbonating drinks and in fire extinguishers, in terms of its solubility and density

Carbon dioxide is dissolved into drinks at a high pressure, this makes CO2 bubbles in fizzy drinks.

Some fire extinguishers have CO2 in, because it is denser than air it will fall over the fire creating a barrier between the air and fire: the fire can't burn with out the oxygen in the air.


  1. Fires can occur and flare up quickly without warning. It is therefore essential to be prepared. Whether you want to protect your business, your home or another asset, it is of vital importance that you have adequate fire protection and are familiar with basic fire fighting techniques.

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  2. Hi thank you so much for this, it helps me a lot, however my teacher tells me that i am right but i need to write the "more spefic/ right term". I am currently studdying the edexcel board so is there anything that can help? If anyone can help, that would bee great.
    Thank You.

  3. Fire is thermal combustion - combustion needs oxygen to occur which the carbon dioxide prevents it by making a layer between the fire and the air(which contains oxygen)