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7 May, 02:07

Object A at 40.°C and object B at 80.°C are placed in contact with each other. Which statement describes the heat flow between the objects?

(1) Heat flows from object A to object B.

(2) Heat flows from object B to object A.

(3) Heat flows in both directions between the objects.

(4) No heat flow occurs between the objects.

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Answers (2)
  1. 7 May, 02:15
    0
    The correct answer is (2) Heat flows from object B to object A

    The explanation:

    The object B at 80°C and the object A at 40°C so, here object B is higher than

    object A at heat and temperature.

    and when the heat flow from the object of higher temperature to the lower one and start to lose heat so, the correct answer is (2)
  2. 7 May, 03:20
    0
    3) Heat flows in both directions between the objects.

    Heat flow between solid objects is called conduction. Conductive heat flow involves the transfer of heat from one location to another in the absence of any material flow. Conduction can also be done through the bulk of an object.

    Heat flow between fluids is called convection. Convection is the process of heat transfer from one location to the next by the movement of fluids. The moving fluid carries energy with it. The fluid flows from a high temperature location to a low temperature location.
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