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anonymous

  • one year ago

how much heat is given off by 1000 kg of iron when it solidifies at its melting point? A. 2.66 * 10^2 J B. 3.76 * 10^-3 J C. 2.66 * 10^7 J D. 2.66 * 10^8 J ** i will draw a table!

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  1. anonymous
    • one year ago
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    |dw:1433178529361:dw|

  2. yadu123
    • one year ago
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    how many questions is this reveiw packet

  3. anonymous
    • one year ago
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    i got access to the tools again!! :P

  4. Michele_Laino
    • one year ago
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    here we have to compute this: (heat of fusion of iron) times (mass of iron)

  5. anonymous
    • one year ago
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    okay so 1000 times _____ ? not sure what to multiply it by :/

  6. yadu123
    • one year ago
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    time the heat of fusion for iron

  7. Michele_Laino
    • one year ago
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    \[{10^3} \times 2.66 \times {10^5} = ...Joules\]

  8. anonymous
    • one year ago
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    oh okie! so we get this? 266000000? so our solution is choice D?

  9. Michele_Laino
    • one year ago
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    that's right!

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

  11. Michele_Laino
    • one year ago
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    :D

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spraguer (Moderator)
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