Question

why does a candle reduce in size on burning​

Answer 1

Answer:

Because twice as much oxygen is burned than carbon dioxide released, the air volume decrease.

Explanation:

The physical aspect ~ the candle heats the air and expands it. This cancels the depletion of the oxygen temporarily and the water level stays down..

Answer 2

A candle reduces in size upon burning as the wax gets used up in burning and some fall from the side, and therefore the size reduces.  

Explanation:

• When a candle is lighted, the flame contains massive heat and this melts the wax.
• The liquid wax is drawn by the candle wick through the capillary action and then it gets evaporated by the heat that is present and this makes the complex hydrocarbons in the wax to decompose.
• The wax in the candle gets used up and hence the size of the candle gradually reduces upon burning.  

Learn more about candles:

The innermost part of a candle flame is the hottest do you agree? give reason

https://brainly.in/question/253032

The innermost part of a candle flame is the hottest do you agree give reason

https://brainly.in/question/5806591