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BellaNina865

  • one year ago

Answer this for me, Please and Thank you! >.< A vacuum flask keeps its contents warmer or cooler than the surrounding environment for a length of time. Its consists of two flasks, one inside the other, that connect at the neck. The space between the two flasks is completely empty of air. 1. How does the design of a vacuum flask reduce heat transfer by conduction? (1 point) A. One flask is smaller than the other flask. B. One flask is more reflective than the other flask. C. There is no air between the two flasks. D. There two flasks do not touch each other, except at the neck.

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  1. aaronq
    • one year ago
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    |dw:1392997668944:dw| the flasks dont have point of physical contact, so thermal energy can't be exchanged.

  2. BellaNina865
    • one year ago
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    C. ????

  3. aaronq
    • one year ago
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    nope, that would be the answer if the q asked about convection. Conduction is about physical contact.

  4. Zupari
    • one year ago
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    I think the answer is the lid of the vacuum flask made up of plastic. There is no correct answer here.

  5. aaronq
    • one year ago
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    lol where does it say the lid is made of plastic?

  6. Zupari
    • one year ago
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    That's the normal way

  7. aaronq
    • one year ago
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    the normal way of what?

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