SOLUTION: the latent heat of fusion for ice is 80 cal/g how much heat required to melts 2g of ice is?

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Question 394819: the latent heat of fusion for ice is 80 cal/g how much heat required to melts 2g of ice is?
Found 2 solutions by jrfrunner, kota28srikanth@gmail.com:
Answer by jrfrunner(365) About Me  (Show Source):
You can put this solution on YOUR website!
when solving these types of equations, look at what you have and what you need.
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you have an identiy 79.8 calories/1gram , this identity can be written as 1gram/79.8calories. It can be used either way depending on what you need.
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you have 1000 calories and want to find grams
so set up your expression
1000cal%2A%281gram%2F79.8cal%29
notice that I used this form of the identity so I could cross cancel the units and leave me with grams.
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%281000cross%28cal%29%2A1gram%29%2F79.8cross%28cal%29=12.53 grams

Answer by kota28srikanth@gmail.com(1) About Me  (Show Source):
You can put this solution on YOUR website!
L/m 80/2=40cal