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18 July, 22:40

Upon heating a copper sample will expand, leading to a lower density?

A) True

B) False

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Answers (1)
  1. 19 July, 01:07
    0
    Answer;

    The above statement is true

    upon heating a copper sample will expand, leading to a lower density

    Explanation;

    -The density of solids decreased with increase in temperature and vice versa. The increase in temperature causes the volume of the solid to increase which as a result decreases the density as Density=Mass/Volume. The temperature of a body is the average kinetic energy of the molecules present in it.

    In other words; The temperature of a body is the average kinetic energy of the molecules present in it. Therefore; when heat is supplied (or temperature is increased) the average kinetic energy increases which increases the volume and thus density decreases.
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