Why is water generally a good fire extinguisher?
Name one exception to this. Water is a good fire extinguisher because it absorbs a lot of heat, dropping the fuel’s temperature quickly below its flash point. But you wouldn’t use water to fight an oil fire. (The program leaves the viewer to ponder why.) 11. At sea level pressure what is the temperature at which water boils? At sea level water boils at 100 degrees Celsius. 12. Why doesn’t boiling water change temperature? The heat is used to change the water to steam. It doesn’t show up as a change in temperature, but as a change in state. 13. Why did the “ice bomb” explode? The ice bomb demonstrated that water expands when it freezes. The cast iron “bomb” burst when the water inside it froze. 14. If pure water is an insulator why is it dangerous to mix electricity and water? Finding pure water is a rare thing. Most water is a solution of something or other. Solutions are full of charged atoms called “ions” and ions are great conductors. So watch out for water and electricity. Treat wa
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