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Why is it that when the air hole is closed the flame became yellow?
Wiki User
∙ 11y ago
The flame becomes yellow because the presence of carbon particles formed by incomplete combustion due to a lack of oxygen caused by the closed air valve.
Wiki User
∙ 11y ago
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Why is it that when the air hole is closed the flame becomes yellow?
because the hole is closed, less oxygen is getting to the flame and therefore the flame cools down and is safe.
What happens to the temperature of the flame when the air hole is opened?
When the air hole is completely open, the flame is the hottest it can be. The fame turns blue. When the air hole is closed, the flame is yellow and its temperature is cooler.
What is the name when the air hole is closed on a Bunsen burner?
It is a luminous yellow flame. 🔥
When the air hole is half open what is the flame called?
Green flame cuz when the air hole is closed it is yellow and when it is open it is blue so when the colors are combined they make the green flame
What happens when the hole on a Bunsen burner is closed?
The "air-hole" of a bunsen burner allows some of the flame to escape so that the heating flame does not become too hot. A flame that is too hot can damage laboratory equipment. When the air hole is closed it is a yellow sooty flame like the fires we have at home.
What do you call a flame on a Bunsen burner when the air hole is half open?
air hole closed- flame is the standard yellow-orange color air hole half open- flame is a violet-blue color air hole open- roaring blue flame
What are the two colors of a Bunsen burner flame?
The two colours are yellow - when the air-hole is open, and blue - when the air-hole is closed.
What was the feature that allowed the Bunsen burner to get a hot flame?
Robert Bunsen added an air hole to it so it could have oxygen as well as gas. when the air hole is open the flame you get is blue and is hotter than when the air hole is closed, which then gives a yellow flame.
When air hole of the Bunsen burner is closed what is the observation?
When the air valve in closed a yellow luminous flame is observed due to carbon particles from in incomplete combustion.
When evaporating dish is held over the flame ( air holes are closed )?
I assume the air holes are on a bunsen burner? In which case, when the air hole is closed the flame glows yellow, is less hot, and is more like the flame on a wax candle. When the air hole is opened, air is drawn in and the flame burns blue and produces a fiercer heat.
Is the hole open or closed on a Bunsen burner to make a safety flame?
It is closed to make a safety flame.
What is the colour of the Bunsen burner when it is halfway closed?
When the hole of a Bunsen burner is half closed (or half open) the flame is mostly blue-violet in color throughout, with no orange/yellow apparent as it would be with the hole fully closed. When the hole is fully open, the flame divides into a pale voilet color outer part with a cone of intense blue color within.
