How much energy is generated from freezing 2.5 g of water?

1 Answer
Jun 25, 2017

Answer:

#200# calories.

Explanation:

The (latent) heat of fusion of a material, is either one of:

1) the heat required to melt the material without temperature change or

2) the heat removed from the material to freeze it without temperature change.

For water this latent heat is #80" cal/g"#. Multiply this by #2.5" g"# to get #200" cal"#.