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2/15/2015 8:14:17 AM
22
I have a physics question
Suppose you take an ice cube tray and use petroleum/gasoline to freeze some blocks of it. What would happen if you:
a) placed a cube above naked flame; or
b) threw a cube against a surface which caused a spark?
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3 回复Boom. [spoiler]arent you that mod who bans people for no reason the most, who everyone seems to hate?[/spoiler]
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由LemonPartydotorg编辑： 2/15/2015 3:21:35 PMWhere can I get your freezer? Damn near amazing if it freezes gas. The ice cube would melt, the flame doesn't heat it up quickly enough to ignite it from frozen. Depends on what you throw it at, but for the majority of the time, and most surfaces you would throw it at, nothing's going to happen, except people might look at you oddly for throwing dirty ice cubes at a wall. But of course if you threw it at a surface made of highly reactive molecules, which spark when anything is done to them, I guess it could go boom.
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3 回复
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1 回复由arf1049编辑： 2/15/2015 8:18:53 AMWell you need some hella cold temperatures to get gasoline to freeze solid. but I imagine it would... 1. Melt on contact with the flame turning the solid to the liquid form. 2. Vaporize into fumes. 3. The fumes would ignite the cube continuing the melting vaporizing process. 4.and for a short time you would have a burning "ice" cube.
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If it was frozen it would not combust because gasoline combusts at 1950 degrees celcius. Basically the first law of thermal dynamics explains this. What would happen is it would the cube would melt and evaporate. Much like if you took a lighter to ice.
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1 回复由Onion Beetle fan编辑： 2/15/2015 8:44:56 AM
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If you freeze it, and immediately set it on a naked flame, it should catch fire, but since its so cold, you'll see the gasoline "melt" and probably a second later turn into a fireball. However though, if it's in room temperature for less than 30 seconds, it revert back to its liquid phase very fast. Lighting it then should create the standard "Fire + Gas" combo.
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由Pontifex Maximus编辑： 2/15/2015 8:36:50 AMIt wouldn't freeze. If you actually managed to cool it enough without diluting it, with, say liquid nitrogen, it would be too cold to ignite. The liquid melting off over the flame would burn, but the cube itself would not ignite. Throwing it at a surface wouldn't cause a spark, unless you froze a steel nail into it and threw it at wall made of flint, in which case the cube would shatter and the nail would spark to no avail.
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3 回复What's the freezing point of gasoline? [i]Could[/i] you freeze it in a standard freezer?
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I'll just assume al of the conditions are in place for the gasoline to freeze. With that said I think the cube would just flare up quickly over an open flame. Nothing would happen if I threw it against a surface that could potentially cause a spark.
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The fumes are usually what ignite the gasoline, plus you'd have to throw it hard enough for the impact to get the frozen gasoline to ignition point. Then the spark would have to ignite it. [spoiler]Hows your throwing arm m80?[/spoiler]
