• Q/Δt ΔT      {Q heat; t time}

• Heat flow Temperature change      {Q/Δt T/Δt}

  So. . . ΔT/t  =  kΔT      {k = constant}

• The rate that ΔT changes is proportional to ΔT! Exponential Function

  To initial ΔT t elapsed time τ time constant ("tau")

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  From Excel:

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• Every 30 sec for 5 min
• Every 1 min for 15 min
• First reading is t = 0!!!

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Revised: 16 May 17

Canton, NY 13617