Midterm WINTER 2013 Question

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Amy_Hoang_1E
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Joined: Wed Sep 21, 2016 2:55 pm

Midterm WINTER 2013 Question

Postby Amy_Hoang_1E » Sun Feb 12, 2017 1:21 pm

For Question 2A of the Winter 2013 Midterm in the Course Reader, I'm confused on how they obtained the equation for the heat capacity of ice.

In the course reader, the solutions shows q(ice)= (n)(deltaH fusion) + m C deltaT

I know where the m C deltaT came from because that is one of the equations, but I'm confused as to why the (n)(deltaH fusion) is there and where it came from?

Alexandra_Shambayate_2L
Posts: 14
Joined: Wed Sep 21, 2016 2:57 pm

Re: Midterm WINTER 2013 Question

Postby Alexandra_Shambayate_2L » Sun Feb 12, 2017 1:31 pm

Because you ice must melt into liquid, it must undergo a phase change. The (n)(deltaH fusion) is the heat (q) required to go from an ice state to a liquid state. Once the ice is melted and is a liquid, them you can solve for m C deltaT. Hope this helps!


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