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anonymous

  • one year ago

The specific heat of gold is 130 C/kgK. How much energy would be required to raise a 200 gram piece from 22 deg C to 30 deg C?

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  1. Michele_Laino
    • one year ago
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    here we have to apply the subsequent formula: \[\Large Q = cm\Delta t = 130 \times 0.2 \times \left( {303 - 295} \right)\] since 22 °C degree coreepsonds to 295 K and 30 °C degree corresponds to 303 K

  2. Michele_Laino
    • one year ago
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    200 grams corresponds to 0.2 Kg

  3. anonymous
    • one year ago
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    ok! and so we get 208?

  4. Michele_Laino
    • one year ago
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    yes! and the right unit of measure is Cal or Kcal namely we have: 208 C or 208 Kcal

  5. anonymous
    • one year ago
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    ohh ok! yay so that is our solution? :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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    :)

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