Question

When we put a candle in a water trough and close the candle by a inverted glass what happens?

Answer 1

Now light up the candle and place it in the middle of the saucer and then cover it up with the cup. With the flame still burning inside the cup, some of the water startscollecting inside the glass, absorbing it from the outside, and when the flame goes off there is a much bigger gush of water into the glass

Answer 2

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A quick rise of water in the jar after the candle is extinguished is mainly due to a decrease in pressure as a result of a decrease in amount of air in the jar due to thermal expansion.

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