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anonymous

  • one year ago

If a system is entirely isolated, which of the following conditions apply? A. Q > 0, W < 0 B. Q=0, W=0 C. Q > 0 , W =0 D. Q = 0, W < 0

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  1. Michele_Laino
    • one year ago
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    by definition, an isolated system can not exchange matter

  2. anonymous
    • one year ago
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    so would that mean choice B?

  3. Michele_Laino
    • one year ago
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    I'm pondering...

  4. anonymous
    • one year ago
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    ok!

  5. Michele_Laino
    • one year ago
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    I think option A, since, energy change is admitted for an isolated system

  6. anonymous
    • one year ago
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    ok!! thank you!!:D

  7. Michele_Laino
    • one year ago
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    using that option, we have: \[Q = \Delta U + W\] first principle, so \[\Delta U\] can be held constant

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