Answer (1 of 8): A CO2 extinguisher contains liquid carbon dioxide or carbon dioxide gas under high pressure, depending on temperature and pressure. When you release the pressure by opening the valve and releasing the gas, it expands by a factor of up to 700 and the temperature drops. Consider t…
The laboratory requires that extinguishers can be safely stored at minus-40 to plus-120 degrees, a standard that is sometimes posted on the extinguisher. …. If you want to be cautious, you should store your extinguisher near the floor and out of the sun. It will stay a lot cooler than the temperature near the roof line.
Why do we get cold burns when we use a carbon dioxide …
Answer (1 of 5): Remember that the total energy of a gas is fixed by the temperature, even when the other properties change. Since the gas cools, we know that the total energy in the gas must have decreased. But when Joule did his classic 1843 experiment on …
People Also Ask why does a fire extinguisher get cold
Do fire extinguishers work in cold weather?
So will AFFF foam, FFFP foam and Class K extinguishers. Other fire extinguishers are more resistant to freezing temperatures, including the the widely used ABC extinguisher, which uses dry chemicals to put out electrical fires, oil fires and class A fires like wood, paper and textile fires.
Does CO2 come out of a fire extinguisher hot or cold?
although CO2’s heat of vaporization is only 151J/g at room temperature, far less than water). So… that’s the long way of saying every other answer is correct: CO2 from a fire extinguisher comes out very cold, cold enough to form dry ice and give you cold burns. EDIT: Thanks to David Talaga for correction.
Why is my fire extinguisher not working?
Even in normal temperatures, storing your fire extinguisher outdoors and subjecting it to precipitation and humidity can cause rust and corrosion that may result in the canister losing pressure, rendering it unusable. If your canister is dented, rusted or has a beat handle, it may be ineffective at releasing whatever substance is inside.
Why does a fire extinguisher hose freeze up?
In the case of the extinguisher, the temperature falls far below the freezing point of water and the humidity in the air condenses on the hose and can even freeze forming a layer of frost. Why does a CO2 fire extinguisher hose get ice old when used?
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Why Do Compressed Air Cans Get Cold? Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher