0.5 kg of blood flows from the interior to the surface of John’s body while he is exercising. The released energy is 2,000 J. The specific h

Question

0.5 kg of blood flows from the interior to the surface of John’s body while he is exercising. The released energy is 2,000 J. The specific heat capacity of blood is 4,186 J/kgo C. What is the temperature difference between when the blood arrives at the body surface and returns back to the Interior of the body?

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Ngọc Hoa 5 months 2021-08-22T07:34:43+00:00 1 Answers 2 views 0

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    2021-08-22T07:36:14+00:00

    Answer:

    0.96°C

    Explanation:

    Specific heat capacity of a body is expressed as H = mcΔt

    H = heat energy released by the body

    m = mass of the body

    c = specific heat capacity of the body

    Δt  = change in temperature of the body

    Given H = 2000J, m = 0.5 kg, c = 4,186 J/kg° C.

    Δt = H/mc

    On substituting the given value;

    Δt  = 2000/4,186*0.5

    Δt   = 2000/2093

    Δt = 0.96°C

    The temperature difference between when the blood arrives at the body surface and returns back to the Interior of the body is 0.96°C

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