An 100-G Piece of Copper,initially at 295°C,is Dropped into 250

Multiple Choice

An 100-g piece of copper,initially at 295°C,is dropped into 250 g of water contained in a 300-g aluminum calorimeter;the water and calorimeter are initially at 10.0°C.What is the final temperature of the system? (Specific heats of copper and aluminum are 0.0920 and 0.215 cal/g·°C,respectively.c_w = 1.00 cal/g·°C)

A) 12.8°C
B) 16.5°C
C) 18.1°C
D) 32.1°C