Ice Cube added to Water

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Jacob Afable 3J
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Ice Cube added to Water

Postby Jacob Afable 3J » Sat Jan 09, 2016 7:09 pm

I'm having some difficulty getting the right solution for question 8.41 which asks for the final temperature after an ice cube is added to water. The solution manual says to change from grams to moles and then using the table to find the amount of heat lost by ice. I tried using the specific heat capacity for water as a solid for C in order to find the amount of heat lost by the ice but I end up with 42.4degreesCelsius rather than 31degrees Celsius. Why is this so?

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Re: Ice Cube added to Water

Postby Chem_Mod » Sun Jan 10, 2016 9:41 am

Check if you include the energy of phase change. Remember that ice will undergo phase change before it rises in temperature. So the energy from water will melt the ice first.

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