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anonymous

  • one year ago

Substances A-D have the following specific heats (J/(kg*K)): Substance A: 900; Substance B: 170; Substance C: 270; Substance D: 4,180. Which substance would be the best for transferring heat in a heating or cooling system? A. Substance A B. Substance B C. Substance C D. Substance D **not sure! thank you:)

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  1. Michele_Laino
    • one year ago
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    I think the substance whose specific heat is the largest

  2. Michele_Laino
    • one year ago
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    since we have to consider this formula again: \[Q = cm\Delta T\]

  3. anonymous
    • one year ago
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    ohh okay!! so how do we do the plugging in this time? :O

  4. Michele_Laino
    • one year ago
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    if m and \Delta T is equal for all substances, than the changing in heat will be the largest if the specific heat is the largest

  5. Michele_Laino
    • one year ago
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    oops..are*

  6. Michele_Laino
    • one year ago
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    no, what is the largest specific heat?

  7. anonymous
    • one year ago
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    ohh okay, so substance D ?

  8. Michele_Laino
    • one year ago
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    yes!

  9. anonymous
    • one year ago
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    yay!! and so that is the answer? substance D? :O

  10. Michele_Laino
    • one year ago
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    yes! that is your answer!

  11. anonymous
    • one year ago
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    yay!! thank you:D

  12. Michele_Laino
    • one year ago
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    thank you!! :D

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