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Why does the water level rise when a bell jar is on top of a candle?
Wiki User
∙ 11y ago
Because the candle takes some of the oxygen out of the air inside the cup, converting
it into compounds with the candle material that have less volume than the oxygen had.
This lowers the air pressure inside the cup, and the water level rises to compress what's
left, until the pressure inside and outside the cup are again equal.
Wiki User
∙ 12y ago
Wiki User
∙ 16y agoin a belljar the amount of air is limited and oxygen is a must for burning so when the oxygen present in the air inside the belljar is used up the candle is extinguished
Wiki User
∙ 11y agoBecause as the candle goes out, the heat from it, trapped in the flask, decreases the air pressure inside the flask, thus raising the water inside.
Wiki User
∙ 11y agothe flame cretes condennsation which makes water droplets
Wiki User
∙ 13y agoLevel goes up because CO2 takes up less space than O2.
Wiki User
∙ 13y agoBecause fire burns air, and when you put the beaker over it, it burns up all of the air and has no source of air coming to it, so it goes out.
Wiki User
∙ 7y agoSame reason anything else floats, by having lower density than what it's floating in.
Wiki User
∙ 11y agobecause it is like a vACUM
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What change in the water level occurs when you hold Erlenmeyer flask over a candle in a pan of water?
When you put a flask over the candle in a pan of water, the water in the pan starts to slowly rise inside the flask, and as the water slowly starts to rise, the candle slowly burns out.
When you put a jar over a burning candle in a tin pan with a little bit of water why does the water rise?
the water rises because the oxygen is used up by the candle to burn and the water takes the place of the oxygen but does not the carbon dioxide formed take the place of the oxygen burnt?
When you put a jar over a burning candle in a tin pan with a little bit of water why does the water rise to take the place of oxygen burnt why not the carbon dioxide formed?
Nice question. The oxygen burn forms carbon dioxide,which is soluble in water being polar,so water rise up.It takes the place of CO2.
When a rock is placed in a graducated cylinder containing water the height of the water will?
The height of the water will rise a level equal to the volume of the rock.
Why does the water rise in a bell jar with a burning candle?
People often think that the reason is because the oxygen gets burned up, creating a vacuum into which the water is sucked, but this is not true. The reason is that the candle heats up the air in the jar, which causes it to expand. The expanding air is pushed through the water at the bottom. Note that at this stage the candle goes out. There is now no flame to heat the air and so it cools down, which makes the air shrink. This is what creates the vacuum that "sucks" the water up.But the oxygen is burned up, so doesn't that reduce the volume of the gas?Yes, the oxygen is burned up, but the chemical reaction between the candle wax and the oxygen produces carbon dioxide of roughly equivalent volume.Does the flame go out because the oxygen gets used up?Actually no. You can show that not all of the oxygen is used up when a candle burns in a bell jar by putting a mouse in the jar, which will stay alive. In fact the changing dynamics of the gases in the jar (increasing carbon dioxide produced in the combustion of wax, decreasing oxygen as it is used up in the combustion) contrive to prevent adequate oxygen from reaching the flame for the combustion reaction to continue.
What change in the water level occurs when you hold Erlenmeyer flask over a candle in a pan of water?
When you put a flask over the candle in a pan of water, the water in the pan starts to slowly rise inside the flask, and as the water slowly starts to rise, the candle slowly burns out.
When the anchor is thrown into the water will the water level in the pool drop or rise?
The anchor displaces water and the water level will rise.
How to measure oxygen using a lit candle?
Remember the percentage of oxygen in the world today is 21%. Get a lit candle and put it on water. Then put a beaker over the lit candle. The water should rise and fill up to 21% of the candle as there is 21% of oxygen in the world.
What is the alternate rise and fall in the level of sea water?
The rise and fall is the tides.
What will happend when you add marbles in water?
The water will be displaced, and the water level will rise.
Why does the water level rise after a tsunami?
Normally it doesn't. Any change in water level is secondary to the earthquake that causes (most) tsunamis and/or the rise or fall of the land that accompanies it.
The water soaks into the flour but the level of flour does not rise why not?
The water is compacting the flour.
When you put a jar over a burning candle in a tin pan with a little bit of water why does the water rise?
the water rises because the oxygen is used up by the candle to burn and the water takes the place of the oxygen but does not the carbon dioxide formed take the place of the oxygen burnt?
What is the rise and fall of the water level along a shore?
tide
What comes first Flood or the rise of the water table?
A flood comes before the rise of the water table. The rise of the water table is a gradual rising of the areas that are actually under water all year round. A flood is a sudden rise in the water level.
You have a pan with 2 inches of water. what happens to the water level when you introduce 4 1 cubic inch ice cubes?
The cubes will displace the water in the pan, causing the water level to rise by an amount equal to the volume of the cubes. The amount of the rise of the water level will depend on the dimensions of the pan.
Why do you build flood barriers?
To keep the water contained should the water level rise.
