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Answer: Does wood have a low conductivity if it is very

Chapter 16, Problem 15E

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QUESTION:

Problem 15E

Does wood have a low conductivity if it is very hot—that is, in the stage of smoldering, red-hot coals? Could you safely walk across a bed of red-hot wooden coals with bare feet? Although the coals are hot, does much heat conduct from them to your feet if you step quickly? Could you do the same on red-hot iron coals? Explain. (Caution: Coals can stick to your feet, so—OUCH!—don’t try it!)

Questions & Answers

QUESTION:

Problem 15E

Does wood have a low conductivity if it is very hot—that is, in the stage of smoldering, red-hot coals? Could you safely walk across a bed of red-hot wooden coals with bare feet? Although the coals are hot, does much heat conduct from them to your feet if you step quickly? Could you do the same on red-hot iron coals? Explain. (Caution: Coals can stick to your feet, so—OUCH!—don’t try it!)

ANSWER:

Solution 15E

Yes, wood has a low conductivity even when it is hot. This is because, wood is an insulator.

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