In a lab experiment, students took a block of copper and heated it for about 15 minutes in a
Bunsen burner flame. After heating the copper block, they placed it in a "coffee cup"
calorimeter containing 150 grams of water. The water's initial temperature was 20°C before
the heated copper block was placed in the water. The temperature of the water continued to
rise until it reached a high temperature of 78.5°C.
How many joules of heat energy did the water absorb from the heated block of copper?