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17 October, 05:18

How much heat is needed to warm 0.072kg of gold from 20 celsius and 90 celsius if the specific heat of gold 136 joules

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  1. 17 October, 07:30
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    Heat supplied to the gold will raise the temperature of the gold from 20 degree Celsius to 90 degree Celsius.

    Mass of the gold (m) = 0.072 kg

    Temperature change (ΔT) = 90 - 20 = 70 degree Celsius

    Specific heat capacity of the gold (c) = 136 J/kg C

    Heat supplied = m * c * ΔT

    Heat supplied = 0.072 * 136 * 70

    Heat supplied = 685.44 Joules

    Hence, the heat supplied to the gold to raise the temperature from 20 degree Celsius to 90 degree Celsius = 685.44 Joules
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