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16 July, 21:55

What is the heat required in kilocalories to convert 2 kg of ice at 0°C completely into steam at 100°C?

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  1. 16 July, 23:51
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    The total amount of heat is the sum of the heat required to convert the ice to water, raise the temperature of water from 0 to 100°, and convert the heated water to steam. The heats are the product of the mass and the specific heats.

    ice to water: (2000 g) x 0.50 cal/g = 1000 cal

    raising of temp: (2000 g) x 1 cal/g°C = 2000 cal

    water to steam: (2000 g) x 0.48 cal/g = 960 cal

    The total amount of heat is equal to 3960 calories or 3.96 kcal.
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