Pages: 1

 

2008-10-26 18:53:40
Ryan
Member
+1,230|7293|Alberta, Canada

a) Determine the density of carbon dioxide (in grams per litre) at SATP.

I figured that the density is 5.12g/L if the CO2 was in the gaseous state, but it is not a gas in a fire extinguisher.

b) If the density of air at SATP is 1.2g/L, use this value and your answer in part a) to suggest one reason for the use of carbon dioxide as a fire-extinguisher agent.

Is it because CO2 is more dense than air, allowing it to smother the flames?

c) State another reason why CO2 is suitable for a fire-extinguishing agent.

Any help would be greatly appreciated, and any retard answers will be ignored.
2008-10-26 19:02:16
Flaming_Maniac
prince of insufficient light
+2,490|7157|67.222.138.85

Ryan wrote:

a) Determine the density of carbon dioxide (in grams per litre) at SATP.

I figured that the density is 5.12g/L if the CO2 was in the gaseous state, but it is not a gas in a fire extinguisher.

b) If the density of air at SATP is 1.2g/L, use this value and your answer in part a) to suggest one reason for the use of carbon dioxide as a fire-extinguisher agent.

Is it because CO2 is more dense than air, allowing it to smother the flames?

c) State another reason why CO2 is suitable for a fire-extinguishing agent.

Any help would be greatly appreciated, and any retard answers will be ignored.
a) in a fire extinguisher it's not at STP

b) the carbon dioxide is more dense, and therefore displaces the air around the fire, removing the oxygen it needs to continue to burn

c) well it's not flammable edit: I mean it's the principle that lets you blow out candles on a birthday cake. It's not like your breath displaces the oxygen, it's just that your breath isn't very flammable and it moves the heat away from what is flammable.
2008-10-26 19:39:34
mcminty
Moderating your content for the Australian Govt.
+879|7171|Sydney, Australia
I cbf to work it out myself at the moment, but wiki tells me that:

1,600 g/L, solid; 1.98 g/L, gas
2008-10-26 19:43:46
SealXo
Member
+309|6986
chem is ghey
2008-10-26 19:46:07
Bevo
Nah
+718|6971|Austin, Texas

Ryan wrote:

a) Determine the density of carbon dioxide (in grams per litre) at SATP.

I figured that the density is 5.12g/L if the CO2 was in the gaseous state, but it is not a gas in a fire extinguisher.
Should be 12+16+16 or 44g/22.4 L. 1.96g/L at STP.

b) If the density of air at SATP is 1.2g/L, use this value and your answer in part a) to suggest one reason for the use of carbon dioxide as a fire-extinguisher agent.

Is it because CO2 is more dense than air, allowing it to smother the flames?
The high density allows it to displace the oxygen.

c) State another reason why CO2 is suitable for a fire-extinguishing agent.

Any help would be greatly appreciated, and any retard answers will be ignored.
It can be found in excess, it's not harmful, toxic, or damaging.

 

Pages: 1

Board footer

Privacy Policy - © 2025 Jeff Minard