Comments on: I lit a candle in an inverted jar over water. Water is rising with number of candles. Why? http://www.virginiagourmetcandles.com/jar-candles/i-lit-a-candle-in-an-inverted-jar-over-water-water-is-rising-with-number-of-candles-why Wed, 28 Jul 2010 21:43:59 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: D H http://www.virginiagourmetcandles.com/jar-candles/i-lit-a-candle-in-an-inverted-jar-over-water-water-is-rising-with-number-of-candles-why/comment-page-1#comment-818 D H Wed, 10 Mar 2010 00:22:59 +0000 http://www.virginiagourmetcandles.com/jar-candles/i-lit-a-candle-in-an-inverted-jar-over-water-water-is-rising-with-number-of-candles-why#comment-818 It has nothing to do with the amount of oxygen but the temperature of the air when the candles are covered by the jar. Warm air is less dense as the same volume of cold air. So as the air cools when the candles go out it creates a vacuum from the air condensing and sucking water into the jar. By using more candles it creates more hotter air thus more of a vacuum as the air cools to room temperature.<br><b>References : </b><br> It has nothing to do with the amount of oxygen but the temperature of the air when the candles are covered by the jar. Warm air is less dense as the same volume of cold air. So as the air cools when the candles go out it creates a vacuum from the air condensing and sucking water into the jar. By using more candles it creates more hotter air thus more of a vacuum as the air cools to room temperature.
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]]> By: kyhick25 http://www.virginiagourmetcandles.com/jar-candles/i-lit-a-candle-in-an-inverted-jar-over-water-water-is-rising-with-number-of-candles-why/comment-page-1#comment-817 kyhick25 Wed, 10 Mar 2010 00:11:59 +0000 http://www.virginiagourmetcandles.com/jar-candles/i-lit-a-candle-in-an-inverted-jar-over-water-water-is-rising-with-number-of-candles-why#comment-817 a flame needs a certain amount of oxygen to burn. like humans need 16% to function and a fish needs 8% by the time the oxygen is reduced to the point of burn out the heat generated by the candles has heated other gases and caused them to expand and taking up more volume when the air cools it contracts creating a vacuum and pulling the water further into the jar.( the more the heat the further the expansion the more the vacuum when cooled.)<br><b>References : </b><br>how it works encyclopida a flame needs a certain amount of oxygen to burn. like humans need 16% to function and a fish needs 8% by the time the oxygen is reduced to the point of burn out the heat generated by the candles has heated other gases and caused them to expand and taking up more volume when the air cools it contracts creating a vacuum and pulling the water further into the jar.( the more the heat the further the expansion the more the vacuum when cooled.)
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how it works encyclopida

]]> By: wncan47 http://www.virginiagourmetcandles.com/jar-candles/i-lit-a-candle-in-an-inverted-jar-over-water-water-is-rising-with-number-of-candles-why/comment-page-1#comment-816 wncan47 Tue, 09 Mar 2010 23:57:59 +0000 http://www.virginiagourmetcandles.com/jar-candles/i-lit-a-candle-in-an-inverted-jar-over-water-water-is-rising-with-number-of-candles-why#comment-816 oxygen is being depleted by the candle and the atmosphere is becoming a vacuum<br><b>References : </b><br>i did that when i was in high school oxygen is being depleted by the candle and the atmosphere is becoming a vacuum
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i did that when i was in high school

]]> By: Edthescienceguy http://www.virginiagourmetcandles.com/jar-candles/i-lit-a-candle-in-an-inverted-jar-over-water-water-is-rising-with-number-of-candles-why/comment-page-1#comment-815 Edthescienceguy Tue, 09 Mar 2010 23:34:59 +0000 http://www.virginiagourmetcandles.com/jar-candles/i-lit-a-candle-in-an-inverted-jar-over-water-water-is-rising-with-number-of-candles-why#comment-815 This is a fascinating experiment which I do each year with my students. According to my calculations, the water should not rise more than 12% of the total volume, as CO2 is being produced by the reaction to replace the used O2. I still, after many years, cannot determine a satisfactory reason for the unusual rise in the water level. Perhaps it is a combination of factors of heat, pressure, water vapor etc. Keep on experimenting and remember to think sideways.<br><b>References : </b><br> This is a fascinating experiment which I do each year with my students. According to my calculations, the water should not rise more than 12% of the total volume, as CO2 is being produced by the reaction to replace the used O2. I still, after many years, cannot determine a satisfactory reason for the unusual rise in the water level. Perhaps it is a combination of factors of heat, pressure, water vapor etc. Keep on experimenting and remember to think sideways.
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]]> By: ziggy? http://www.virginiagourmetcandles.com/jar-candles/i-lit-a-candle-in-an-inverted-jar-over-water-water-is-rising-with-number-of-candles-why/comment-page-1#comment-814 ziggy? Tue, 09 Mar 2010 22:56:59 +0000 http://www.virginiagourmetcandles.com/jar-candles/i-lit-a-candle-in-an-inverted-jar-over-water-water-is-rising-with-number-of-candles-why#comment-814 i dunno but that happens to anything like when you jump into a bathtubbb, thats filled it may overflow,<br><b>References : </b><br> i dunno but that happens to anything like when you jump into a bathtubbb, thats filled it may overflow,
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]]> By: Taylor B http://www.virginiagourmetcandles.com/jar-candles/i-lit-a-candle-in-an-inverted-jar-over-water-water-is-rising-with-number-of-candles-why/comment-page-1#comment-813 Taylor B Tue, 09 Mar 2010 22:11:59 +0000 http://www.virginiagourmetcandles.com/jar-candles/i-lit-a-candle-in-an-inverted-jar-over-water-water-is-rising-with-number-of-candles-why#comment-813 its because the flame used up all the oxygen and created a vaccuum and pull it down to the bottom<br><b>References : </b><br> its because the flame used up all the oxygen and created a vaccuum and pull it down to the bottom
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]]> By: So_Hot_An_Ice http://www.virginiagourmetcandles.com/jar-candles/i-lit-a-candle-in-an-inverted-jar-over-water-water-is-rising-with-number-of-candles-why/comment-page-1#comment-812 So_Hot_An_Ice Tue, 09 Mar 2010 21:51:59 +0000 http://www.virginiagourmetcandles.com/jar-candles/i-lit-a-candle-in-an-inverted-jar-over-water-water-is-rising-with-number-of-candles-why#comment-812 The water rises in the jar as it replaces the volume of oxygen being used by the candle, in order the maintain the pressure difference, so if you increase the no. of candles the vol. of O2 burned would also increase and so the level of water in jar also increases.<br><b>References : </b><br> The water rises in the jar as it replaces the volume of oxygen being used by the candle, in order the maintain the pressure difference, so if you increase the no. of candles the vol. of O2 burned would also increase and so the level of water in jar also increases.
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]]> By: the^analyst http://www.virginiagourmetcandles.com/jar-candles/i-lit-a-candle-in-an-inverted-jar-over-water-water-is-rising-with-number-of-candles-why/comment-page-1#comment-811 the^analyst Tue, 09 Mar 2010 21:06:59 +0000 http://www.virginiagourmetcandles.com/jar-candles/i-lit-a-candle-in-an-inverted-jar-over-water-water-is-rising-with-number-of-candles-why#comment-811 floating candles?? lol i hate chemistry so me no know 0:]<br><b>References : </b><br> floating candles??

lol i hate chemistry so me no know 0:]
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