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24 January, 15:30

The specific heat of a certain type of cooking oil is 1.75 J / (g ⋅ ° C). 1.75 J / (g⋅°C). How much heat energy is needed to raise the temperature of 2.76 kg 2.76 kg of this oil from 23 ° C 23 °C to 191 ° C?

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  1. 24 January, 17:03
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    811.44 kJ

    Explanation:

    specific heat, c = 1.75 J/g °C

    mass, m = 2.76 kg

    T1 = 23 °C

    T2 = 191 °C

    Heat required, H = m x c x ΔT

    H = 2.76 x 1.75 x 1000 x (191 - 23)

    H = 811440 J

    H = 811.44 kJ

    Thus, the amount of heat required is 811.44 kJ.
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