Posted by **elisabeth** on Friday, February 19, 2010 at 11:03pm.

how much heat is required to vaporize 7 grams of ice initially at 0 degrees celsius when the latent fusion of ice is 80 cal/g, the vaporization of water is 540 cal/g, and the specific heat of water is 1 cal/(g x C)?

- physics -
**drwls**, Friday, February 19, 2010 at 11:12pm
Each gram of 0 deg. C ice requires 80 Cal to melt, 100 Cal to heat from 0 to 100 C as liquid water, and 540 cal to vaporize. That is a total of 720 calories.

Multiply that by the number of grams for the answer.

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