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Family Physician
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How many calories are needed to melt 50 grams of ice at 0 ...

Resolved Question:

How many calories are needed to melt 50 grams of ice at 0 degrees Celsius and convert it to liquid water at 35 degrees Celsius?
Submitted: 10 years ago.
Category: Homework
Expert:  Family Physician replied 10 years ago.
This type of problem involves several calculations: A phase change (in this case from solid to water (heat of fusion) and the temperature increase.

First the phase change (heat of fusion) 79.7 cal/gram (334 kJ/kg)
The change in temperature (specific heat) 1 cal/gram/degree change = 35 cal/gram (35 degree change)

79.7 + 35 = 114.7 cal/gram
To get your final answer: Multiply by the 50 grams to get 5,735 calories
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Expert:  Family Physician replied 10 years ago.

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