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anonymous

  • one year ago

A 0.80 kg block of a substance requires 2.08 kJ of heat to raise its temperature 20 K. Use the table to identify the substance. (attached inside!) Iron, aluminum, gold, or copper? **not sure which it would be? :/ thank you!!

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  1. anonymous
    • one year ago
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  2. Michele_Laino
    • one year ago
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    here we have to compute the specific heat, first, so we have to apply this formula: \[\Large c = \frac{Q}{{m\Delta T}}\]

  3. anonymous
    • one year ago
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    okay!! how can we plug in? :/

  4. Michele_Laino
    • one year ago
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    \[\Large c = \frac{Q}{{m\Delta T}} = \frac{{2080}}{{0.80 \times 20}} = ...\frac{{Joules}}{{Kg \times Kelvin}}\]

  5. anonymous
    • one year ago
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    ohh okay! so we get 130? and that is the same as gold? so our answer is gold? :O

  6. Michele_Laino
    • one year ago
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    yes!

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

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

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