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anonymous

  • one year ago

Which of the following is true concerning kinetic-molecular theory and heat transfer between relatively hotter Object A and relatively colder Object B? A. Molecules of Object A collide with those of Object B, and the molecules in Object B move faster. B. Molecules of Object A collide with those of Object B, and the molecules in Object B move at the same speed. C. Molecules of Object B collide with those of Object A, and the molecules in Object A move faster. D. Molecules of Object B collide with those of Object A, and the molecules in ObjectB move slower.

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  1. Michele_Laino
    • one year ago
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    the heat of a body is associated to the motion of its molecules. So, if the object A is colder than object B, then the kinetic energy of each molecule of the object B, is greter than the kinetic energy of each molecule of the object A

  2. Michele_Laino
    • one year ago
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    the transfer of heat is caused by collisions among molecules of the object A with molecules of the object B

  3. anonymous
    • one year ago
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    ohh so but in this case, when object a is hotter than object b, does that mean the opposite? object A has greater kinetic energy than object B?

  4. Michele_Laino
    • one year ago
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    so after that collisions, part of kinetic energy of each molecule of the object B, will be transferred to a corresponding molecule of the object A

  5. Michele_Laino
    • one year ago
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    yes!

  6. Michele_Laino
    • one year ago
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    nevertheless, in this case object A is colder than object B

  7. anonymous
    • one year ago
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    yay!! but doesn't this problem say "relatively hotter object a and relative colder object b" ? :/

  8. Michele_Laino
    • one year ago
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    sorry, I have made an error. I thought that object A is relatively colder than object B

  9. anonymous
    • one year ago
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    ohh okay no problem!! :D so in this case, what would the choice be? :/

  10. Michele_Laino
    • one year ago
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    then we can say this: so after that collisions, part of kinetic energy of each molecule of the object A, will be transferred to a corresponding molecule of the object B

  11. anonymous
    • one year ago
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    so object a has more kinetic energy than object b, right? and ohh okay so this means Object A is colliding with object b?

  12. Michele_Laino
    • one year ago
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    yes! Object A has more kinetic energy ( which is called Internal Energy) than object B

  13. anonymous
    • one year ago
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    okay, so would that mean the molecules in object b move more quickly? meaning choice A?

  14. Michele_Laino
    • one year ago
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    collisions are related to molecules of both objects, namely A and B. The heat transfer, goes from object A to object B

  15. Michele_Laino
    • one year ago
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    yes! The right option is the first one!

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

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

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