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24 January, 20:26

how much energy is required to heat 40.0 grams of water from 25°C to 75°C? The specific heat capacity of water is 4.184 J/g.

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  1. 24 January, 20:38
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    Q = 8368J

    Explanation:

    Mass (m) = 40g

    Initial temperature (T1) = 25°C

    Final temperature (T2) = 75°C

    Specific heat capacity (c) = 4.184J/g°C

    Heat energy (Q) = ?

    Q = Mc∇T

    Q = Mc * (T2 - T1)

    Q = 40 * 4.184 * (75 - 25)

    Q = 167.36 * 50

    Q = 8368J

    The heat energy required to raise the temperature from 25°C to 75°C is 8368J
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