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28 July, 08:39

A soccer player twists her ankle on the field. The atheltic trainer applies an ice bag with 260 g of ice inside. How much heat, in joules, wil be absorbed, to melt all the ice to 0°C?

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  1. 28 July, 10:32
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    Q = 8.68 * 10⁴ J

    Explanation:

    We can calculate the heat required to melt a mass of ice, that is, to change it from the solid phase to the liquid phase, at a constant temperature of 0 °C, using the following expression.

    Q = ΔH°f * m

    where,

    Q is the heat absorbed ΔH°f is the standard enthalpy of fusion (ΔH°f for water: 334 J/g) m is the mass of ice

    Q = ΔH°f * m

    Q = 334 J/g * 260 g

    Q = 8.68 * 10⁴ J
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