Chapter 4: Combustion and Flame

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Q
Combustion and Flame

Question:

Which zone of a flame does a goldsmith use for melting gold and silverand why?

Answer:

Flame is a hot glowing body of ignited gas that is produced when something is on fire.

Structure of flame:

Goldsmiths blow at the outermost zone of a candle flame for melting gold and silver this is because the outermost zone of a flame is its hottest part. Gold and silver have high melting points and hence, goldsmiths blow at the outermost zone of the flame to melt gold and silver quickly.


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