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25 February, 05:49

Two objects are in contact. Which of the following conditions will yield the greatest rate of heat flow between the objects?

A. Object A is at - 20, and object B is at 20 degrees c

B. Object A is at - 20 degrees C, and object B is at 0 degrees C

C. Object A is at 0 degrees C, and object B is at 0 degrees C

D. object A is at - 10 degrees C, and object B is at 10 degrees C

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Answers (1)
  1. 25 February, 07:50
    0
    A

    Explanation:

    The rate of heat flow is directly proportional to the difference in temperatures between the two objects. The difference is greatest in the situation A (40 degrees Celsius) causing the heat flow to be greatest among the choices.
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