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6 December, 08:20

Calculate the energy in joules and calories required to heat 25.0 g of water from 12.5C to 25.7C

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  1. 6 December, 12:14
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    The heat (Q) required to raise the temp of a substance is: Q=m∗Cp∗ΔT where m is the mass of the object (25.0g in this case), Cp is the specific heat capacity of the substance (for water Cp = 1.00cal/gC, or 4.18J/gC,

    and Dt is the change in temp.

    You'll have to solve this twice, once with the Cp in calories, and once with the Cp in joules.

    1380.72 Joules
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