## Putting an Ice cube into a glass of water

Akash_Kapoor_1L
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### Putting an Ice cube into a glass of water

Why don't we factor in the delta H of fusion into our calculation of the final temperature of water in these problems? Wouldn't some heat energy be lost in melting the ice cube or am I just overthinking the problem?

Sabrina Dunbar 1I
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### Re: Putting an Ice cube into a glass of water

You do factor in the heat of fusion in these questions. You need to account for the heat required to melt the ice and then to raise the liquid water to the final temperature. Hopefully this helps.

Michaela Capps 1l
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Joined: Thu Jul 27, 2017 3:00 am

### Re: Putting an Ice cube into a glass of water

You're right--you do need delta H of fusion because heat is lost from ice to water.

Justin Lai 1C
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Joined: Fri Sep 29, 2017 7:04 am

### Re: Putting an Ice cube into a glass of water

Yes, need both deltaH fusion and deltaH for warming up liquid water to final temp.

Phillip Tran
Posts: 54
Joined: Thu Jul 13, 2017 3:00 am

### Re: Putting an Ice cube into a glass of water

you do need dH of fusion