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Conduction can occur in solids liquids and gases.  Explain why solids and liquids are...

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bergcar | Student, Grade 11 | Valedictorian

Posted February 7, 2012 at 6:44 AM via web

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Conduction can occur in solids liquids and gases.  Explain why solids and liquids are better conductors of heat than gases.

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bandmanjoe | Middle School Teacher | (Level 1) Senior Educator

Posted February 7, 2012 at 7:17 AM (Answer #1)

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The answer is simple:  their atoms, or molecules that make them up, are closer together, so they can transfer energy between them much more efficiently.  The particles of a solid are packed together tightly in a ordered fashion.  There is little movement between them.  The particles of a liquid have a little more freedom, being able to glide over and past each other, but are still relatively close together, so passing energy is easily accomplished.  The particles of a gas are spaced far apart.  For them to transfer energy, they have to bump into each other, which doesn't happen as much as it does for solids and liquids.

Think of it like this:  which would be easier, in terms of forming an old-fashioned "bucket brigade" to pass a bucket of water, having 100 students shoulder to shoulder, passing the bucket, or having 10 students, covering the same distance the 100 covered?  It would be much easier with the 100 transferring the bucket, one student at a time.

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atyourservice | TA , Grade 10 | Valedictorian

Posted June 30, 2014 at 9:51 AM (Answer #2)

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Because the molecules in solids and liquids are closer together, than those of a gas.

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givingiswinning | Student, Grade 10 | Valedictorian

Posted July 31, 2014 at 11:32 PM (Answer #3)

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the molecules in solids and liquids are closer together, than those of a gas.

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