thermal physics problems, physics assignment help

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2. 100 grams of ice at -15 degrees C are placed in a container. How much heat in joules must be added to do the following?

(1) Raise the temperature of the ice to 0 degrees C;
(2) Melt the ice;
(3) Heat water from 0 degrees C to 100 degrees C;
(4) Change water to steam.

3. An ice cube having a mass of 50 grams and an initial temperature of -10 degrees Celsius is placed in 400 grams of 40 degrees Celsius water. What is the final temperature of the mixture if the effects of the container can be neglected?

 
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