A metal wire is in thermal contact with two heat reservoirs at both of its ends. Reservoir 1 is at a temperature of 686 K, and reservoir 2 i

Question

A metal wire is in thermal contact with two heat reservoirs at both of its ends. Reservoir 1 is at a temperature of 686 K, and reservoir 2 is at a temperature of 292 K. Compute the total change in entropy arising from the conduction of 1216 J of heat through the wire. Please give your answer in units of J/K.

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Mộc Miên 4 years 2021-08-25T10:00:33+00:00 1 Answers 8 views 0

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  1. trucchi
    0
    2021-08-25T10:01:46+00:00
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    Answer:

    ΔS = 3.09 J/K

    Explanation:

    Entropy is defined as the magnitude of disorder in a system. Mathematically, entropy change is given as, the heat absorbed or released by a system divided by the change in absolute temperature. So, the formula for entropy change is as follows:

    ΔS = ΔQ/ΔT

    where,

    ΔS = Change in Entropy of Metal Wire = ?

    ΔQ = Heat Conducted through Wire = 1216 J

    ΔT = Difference in Temperature = 686 K – 292 K = 394 K

    Therefore,

    ΔS = 1216 J/394 K

    ΔS = 3.09 J/K

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )