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Is a fireplace poker glowing red when placed into fire a chemical or physical change
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Is a fireplace poker glowing red when placed into fire a chemical or physical change

User Hrishabh Gupta
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It is a physical change. The red glow is caused by radiation being emitted by the hot poker as it cools.
User Mike Gwilt
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A fireplace poker glowing red when placed into fire constitutes a physical change. All that is happening is that (usually) iron poker is being heated and emitting light. There is no change to the chemical properties.
User Abid Nawaz
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7.6k points
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