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21 August, 09:02

A silver bar has a mass of 260.0 g and is heated from 22.0 °C to 70.0 °C. How much heat does the silver bar absorb? Silver has a specific heat of 0.235 J / (g °C).

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Answers (2)
  1. 21 August, 09:06
    0
    By Energy = mass * specific heat capacity * temperature change,

    260 * 0.235 * (70 - 22) = 2932.8 J
  2. 21 August, 09:13
    0
    The answer is 2,932.8 J

    Explanation:

    The formula for heat gained = MC (T2 - T1)

    Where, given values are:

    M = mass of silver bar = 260g

    C = specific heat capacity of silver = 0.235 J / (g °C)

    T2 = final temperature = 70.0 °C

    T1 = initial temperature = 22.0 °C

    Therefore, heat gained = 260 * 0.235 * (70.0 - 22.0) = 2,932.8 J
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