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7 March, 00:28

How much he is given out 185 g of lead cools from 200 Celsius to 10 Celsius

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  1. 7 March, 00:54
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    Given data

    mass (m) = 185 g = 0.185 Kg,

    temperature (T₁) = 200°C = 200 + 273 = 473 K

    temperature (T₂) = 10°C = 10+273 = 283 K

    Specific haet at constant pressure (Cp) = 2.108 Kj/Kg k

    Heat transfer (Q) = m. Cp. (T₂ - T₁) J

    = 0.185 * 2.108 * (283 - 473)

    Q = - 74.09 KJ

    Heat rejected from ice is 74 J
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