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Topic: Temperature problem  (Read 2989 times)

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Offline Forceofmatter

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Temperature problem
« on: March 26, 2009, 10:20:07 PM »
A 20.0 g sample of ice at -10.0 degrees Celsius is mixed with 100.0 g of water at 80.0 degrees Celsius. Calculate the final temperature of the mixture assuming no heat loss to the surroundings. The heat capacities of H20 (solid) and H20 (liquid) are 2.08 J/g deg. Celsius and 4.18 J/g deg. Celsius respectively, and the enthalpy of fusion of ice is 6.01 kJ/mol.

The answer is 52.4 deg. Celsius. But I am unsure of how to get the answer. Please help asap.

Offline nj_bartel

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Re: Temperature problem
« Reply #1 on: March 26, 2009, 11:53:31 PM »
How much energy does it take to warm the ice to 0 celsius?

How much energy does it take to melt all the ice?

How much heat does this energy transfer remove from the water?

At what temperature does the water equilibrate at, now that it is nothing but water?

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