Calorimetry: A lab assistant pours 330 g of water at 45°C into an 855-g aluminum container that is at an initial temperature of 10°C. The specific heat of aluminum is 900 J/kg ? K, and that of water is 4186 J/kg ? K. What is the final temperature of the system, assuming no heat is exchanged with the surroundings?
A. 28°C
B. 32°C
C. 31°C
D. 33°C
E. 35°C
Answer: B
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