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    Hess's Law - Temperature

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    Please answer step-by-step with solutions:

    A 150.0 iron bar at 330 degrees C is put in 1.00 kg water at 20.0 degrees C. What is the final temperature of the bar?
    (Hint: bar and water will be the same at the end.)

    Cs = 0.45J/(grams degree C) for iron
    Cs = 4.18J/(grams degree C) for water

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    Solution Preview

    Dear student,

    Assuming all of the heat released from the iron bar absorbed by water, you can than set up the following two equations:

    For the heat released by the iron ...

    Solution Summary

    The solution is given step-by-step to solve for T2.