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a flame needs oxygen to burn so if you put a lit candle in a closed container (like a jar) the oxygen will continue to fuel the fire until there is no more oxygen and the candle will go out
The candle burning in the open will burn longer, because it has easy access to oxygen to sustain the reaction. The flame of the candle burning under the jar will go out quickly, since it will use up its available oxygen faster than the oxygen can be replenished. Even if the jar is open at the bottom, the heat, carbon monoxide, and carbon dioxide produced by the flame will prevent sufficient oxygen from getting to the flame to feed it.
Because, if there is a candle in a closed jar it will almost immediately go out. This is because fires cannot be lit without oxygen, and with a closed jar, no oxygen can come in. The fire eats up all of the oxygen, causing it to go out if not quickly exposed to oxygen.
the candle will go out because oxygen helps in burning but a burning substance produces carbon dioxide but when we put a glass upon can carbon will heavier than oxygen and when oxygen will less candle will go out
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.
Once the oxygen was used up, both candles would go out.
The candle consumes all the oxygen in the confined space and burns out
1 to 5 minutes
a flame needs oxygen to burn so if you put a lit candle in a closed container (like a jar) the oxygen will continue to fuel the fire until there is no more oxygen and the candle will go out
The candle burning in the open will burn longer, because it has easy access to oxygen to sustain the reaction. The flame of the candle burning under the jar will go out quickly, since it will use up its available oxygen faster than the oxygen can be replenished. Even if the jar is open at the bottom, the heat, carbon monoxide, and carbon dioxide produced by the flame will prevent sufficient oxygen from getting to the flame to feed it.
I assume you are thinking about a situation where the jar is airtight.In this case, a larger jar will have more air in it, and therefore more oxygen; the candle will be able to burn longer in a larger jar. I would expect the time it burns to be roughly proportional to the volume of the jar.
It doesn't get any oxygen and therefore the flame goes out
Because if you put on the lid then the oxygen will be burnt and a candle will not be able to stay lit without oxygen.
Because, if there is a candle in a closed jar it will almost immediately go out. This is because fires cannot be lit without oxygen, and with a closed jar, no oxygen can come in. The fire eats up all of the oxygen, causing it to go out if not quickly exposed to oxygen.
It will burn the gas out. Then go out.
The candle would burn off all the oxygen inside the jar, then the flame would go out as it needs oxygen to burn.
I assume you are thinking about a situation where the jar is airtight.In this case, a larger jar will have more air in it, and therefore more oxygen; the candle will be able to burn longer in a larger jar. I would expect the time it burns to be roughly proportional to the volume of the jar.