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31 March, 14:38

How much heat energy is required to raise the temperature of 0.367 kg of copper from 23.0 C to 60.0 C? The specific heat of copper is 0.0920 cal / (g x C)

If 125 cal of heat is applied to a 60.0 g - piece of copper at 23.0 C, what will the final temperature be? The specific heat of copper is 0.0920 cal / (g x C)

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  1. 31 March, 16:40
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    Note: We must keep the units we use consistent. The Cp is given in cal/gC so we will use cal for energy, grams for mass and C for temperature.

    1)

    Heat supplied can be calculated using:

    Q = mCpΔT; where m is the mass, Cp is the specific heat capacity and ΔT is the temperature change.

    Q = 367 x 0.092 x (60 - 23)

    Q = 125 Cal

    2)

    Using the same equation:

    125 = 60 x 0.092 x (T - 23)

    T = 45.6 C
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