1. An 25.96 g sample of aluminum is placed on a 45.15 g sample of copper...
1. An 25.96 g sample of aluminum is placed on a 45.15 g sample of copper initially at 121.98oC. If the heat is only transferred between the metals (with no loss to the surroundings) and the final temperature of both metals is 48.99oC, what is the inital temperature (in oC) of aluminum?
2. How much heat (in kJ) is evolved when 87.9 g of water cools and freezes from 66.91oC to 0oC?
Thank you very much!
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