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3 April, 09:57

0.005 kg of copper was heated from 20°C to 80°C. How much energy was used to eat

Cu? (Specific heat capacity of Cu is 385 J/kg °C)

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  1. 3 April, 12:43
    0
    115.5 Joules

    Explanation:

    We are given;

    Mass of copper as 0.005 kg Initial temperature as 20° C Final temperature as 80° C specific heat of copper as 385 J/kg°C

    We are required to calculate the quantity of heat energy used

    We know that, Q = m * c * ΔT

    Change in temperature, ΔT = 80° C - 20° C

    = 60 °C

    Therefore;

    Quantity of heat, Q = 0.005 kg * 385 J/kg/°C * 60° C

    = 115.5 Joules

    Thus, the heat energy used to heat copper is 115.5 Joules
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