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Question

Namita noticed that the LPG gas stove in her kitchen was giving out yellow flame and blackening the utensils. She cleaned the stove burners. The flame then became blue and stopped blackening the utensils. She explained to her parents that the stove was not burning efficiently and wasting fuel because it was dirty. What values did Namita Show?

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Solution

The yellow flame coming out of the LPG cylinder because a sufficient amount of oxygen is not available for the burning of LPG.
Yellow flame shows the release of carbon monoxide which is poisonous gas and blue flame also releases a lot of unburnt carbon particles which make utensils black.
So, after cleaning of stove burner, a sufficient amount of oxygen is available which doesn't lead to the production of carbon monoxide and release less unburnt carbon. Due to which blackening of utensils stops.
Values shown by Namita is that she is well aware of environmental problems and health risks caused due to the production of carbon monoxide.


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