Why does the water level rise when a bell jar is on top of a candle?

Answer 1

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.

Answer 2

The candle heats the air inside the bell jar, causing it to expand and push the water level down. When the candle goes out, the air cools and contracts, creating a lower pressure inside the bell jar. This lower pressure causes the water to rise to equalize the pressure inside and outside the bell jar.

Answer 3

in 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

Answer 4

Because 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.

Answer 5

the flame cretes condennsation which makes water droplets

Answer 6

Level goes up because CO2 takes up less space than O2.

Answer 7

Because 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.

Answer 8

Same reason anything else floats, by having lower density than what it's floating in.

Answer 9

because it is like a vACUM