Gujarat BoardEnglish MediumSTD 8ScienceCombustion and Flame2 Marks
Question
Why does a goldsmith blow air into the kerosene lamp flame with a blow-pipe?
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Answer
A goldsmith blows air into the kerosene lamp flame with a blow pipe so that complete combustion of fuel takes place and the temperature of the flame increases. He blow the outermost zone of a flame with a metallic blow pipe for melting gold and silver because this is the hottest part of the flame.
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