Why coal have not flame?

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Lakshmi Kumari

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When the wax melts, it, rises through the wick and are vapourised during burning and form flames. Charcoal, on the other hand, does not vapourise and so does not produce a flame. Charcoal is a fuel which is used in home and it is combustible substance. The substance which vapourises during burning gives...
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When the wax melts, it, rises through the wick and are vapourised during burning and form flames. Charcoal, on the other hand, does not vapourise and so does not produce a flame. Charcoal is a fuel which is used in home and it is combustible substance. The substance which vapourises during burning gives flame. For eg:- wax, petrol, kerosene. But charcoal does not produce flame while burning but glows because it is the natural lump variety made from hardwood---can do more than cook burgers and smoke ribs while wax is a petroleum product and even wax is used in candles. Therefore, When the wax melts, it, rises through the wick and are vapourized during burning and form flames. Charcoal, on the other hand, does not vapourise and so does not produce a flame. read less
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biology online tutor

Coal does not produce flame when burnt because it does not vapourizes, only those substances which vapourizes on burning produce flame like wax , natural gas.
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Science lover

Substances that undergoes rapid combustion have lower ignition temp..and coal do not vaporize while burning that's why does not produce flame.
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as it is a non flammable substance
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Substance which vapourise during burning process produce flames e.g petrol , kerosene , LPG on the other hand substance which do not vapourise do not produce flame like coal .
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Becoz it dont get vapourised during burning. Flame is produced only when substances vapourises on burning
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Tutor

Coal and coke do not vaporize while burning and hence do not produce flame.
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The candle that burn into flame contain water vapour, then when we lit it the water vapour move upward for which the candle give flame but coal doesnt have water vapour so it doesn't give flame.
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Tutor

Because it does not vaporised .
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vivek

Because coal could not produce CO2 gas when coal are burnt.
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