Question

answer the following questions about a candle
1. why does a candle flame have a teardrop shape ?
2. why is the region of the flame near the wink is blue?
3. why is the outer region of the flame yellow ?
4. how can time be measured using a candle?





the person to answer these all questions will be marked brainliest

Answer 1

When you light a candle, the heat of the flame melts the wax near the wick. This liquid wax is then drawn up the wick by capillary action.The wisp of smoke you sometimes see when a candle flickers is actually caused by unburned soot particles that have escaped from the flame due to incomplete combustion.


When you light a candle, the heat of the flame melts the wax near the wick. ... The heat of the flame vaporizes the liquid wax (turns it into a hot gas), and starts to break down the hydrocarbons into molecules of hydrogen and carbon.

candle flame are yellow because they are the result of burning low energy fuel in a low oxygen content, and so they are not very hot. ... The incomplete combustion of wax produces small unburnt carbon particles which rise in the flame, get heated and glow to give out yellow and luminous flame.

A candle clock can be used to measure time. ... When a candle has burnt the wax between two marks an hour has passed. The candle needs to burn steadily. If it is in a draught it will burn more quickly so it is placed in a holder which lets you see the marks on the candle yet protects the candle from draughts.