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23 July, 13:28

If 40 kJ of heat energy are added to 4 kg of water at 30°C, what will be the final temperature of the water? The specific heat of water is 4186 J / (kg·°C)

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  1. 23 July, 13:35
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    Heat gained or added in a system can be calculated by multiplying the given mass to the specific heat capacity of the substance and the temperature difference. It is expressed as follows:

    Heat = mC (T2-T1)

    40000 = 4 (4186) (T2 - 30.0)

    T2 = 32.4 degrees Celsius
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