Multiple Choice
Many people believe that coffee (sp ht = 4.18 J/g °C) may be cooled by placing a silver spoon (sp ht = 0.237 J/g °C) in the coffee. If 250 ml (d = 1.00 g/mL) of coffee at 200°F had a spoon at 70°F placed in it, what would be the final Celsius temperature of the spoon and coffee, assuming that no heat is lost to the surroundings? The mass of the spoon is 35 g.
A) 92.2°C
B) 72.2°C
C) 57.2°C
D) 82.0°C
E) 199°C
Correct Answer:
Verified
Correct Answer:
Verified
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