A camper is about to drink his morning coffee. He pours 400 grams of coffee, initially at 75.0°C, into a 250-g aluminum cup, initially at 16.0°C
What is the equilibrium temperature of the coffee-cup system, assuming no heat is lost to the surroundings? The specific heat of aluminum is 900 J/(kg?K). Assume that the specific heat of coffee is the same as the specific heat of water.
A)
45.5°C
B)
62.0°C
C)
65.0°C
D)
68.0°C
E)
71.0°C
D
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