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15 August, 04:27

How much energy would it take to heat a section of the copper tubing that weighs about 630.0 g, from 13.12 ∘C to 27.91 ∘C? Copper has a specific heat of 0.3850 (J/g) ⋅∘C.

Express your answer to four significant figures.

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Answers (2)
  1. 15 August, 04:37
    0
    Q=mcdeltaT

    q=630*0.385 (J/g) ⋅∘C.*14.79

    q=3587.3145 J
  2. 15 August, 06:31
    0
    Q = mC (θ₂ - θ₁)

    Q = 630g * 0.385 J/g°C * (27.91 - 13.12) °C

    Q = 3587.3145 J

    Q ≈ 3587 J to 4 significant figures.
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