The calculation below is set up to determine how much heat is needed to convert 50 g of ice at ?20 °C to steam at 300 °C. Which constant does A represent? (A)(50 g)(20 °C) + (heat of fusion)(50 g) + (4.18 J/g°C)(50 g)(100 °C) + (B)(50 g) + (C)(50 g )(200 °C) = total heat

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Quizplus · Accepted Answer

A represents the specific heat of ice, which is the amount of heat required to raise the temperature of 1 gram of ice by 1 °C. This is used in the first term of the equation to calculate the heat needed to raise the temperature of ice from -20 °C to 0 °C (its melting point).

The Calculation Below Is Set Up to Determine How Much