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anonymous
 one year ago
When a 3kg iron skillet is heated on the stove, it becomes hot very quickly. When 3 kg of water is heated on the stove it heats up slowly. What is the reason for this difference? Support your answer using 3 – 4 complete sentences.
anonymous
 one year ago
When a 3kg iron skillet is heated on the stove, it becomes hot very quickly. When 3 kg of water is heated on the stove it heats up slowly. What is the reason for this difference? Support your answer using 3 – 4 complete sentences.

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Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0let's suppose to heat the same mass of water and iron, namely M=3 Kg of iron and M=3 kg of water Let's suppose furthermore, that the temperature difference is the same, say \[\Delta \theta \]

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0then the quantity of heat absobed by iron is: \[\Delta {Q_{IRON}} = {c_{IRON}}M\Delta \theta \]

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0where the quantity of heat absorbed by water is: \[\Delta {Q_{WATER}} = {c_{WATER}}M\Delta \theta \]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0None of that makes sense to me

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0now we can consider the specific heat of a substance: \[\Large c = \frac{1}{M}\frac{{\Delta Q}}{{\Delta \theta }}\] as a heating rate with respect to the temperature difference

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0empirically we can say that the subsequent condition holds: \[\Large \Delta {Q_{IRON}} > \Delta {Q_{WATER}}\] from which, we get: \[\Large {c_{IRON}} > {c_{WATER}}\]

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0and keeping in mind the meaning of c as heating rate, we get your answer

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0another reasoning is: the mobility of electrons inside the iron (please think about the Fermi sea) is greater than the mobility of the molecule of water, so the heat will transmit itself more rapidly in iron than in water
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