A piece of chocolate cake is burned with oxy-
gen in a bomb calorimeter. The temperature
of 3457 grams of H2O in the calorimeter is
raised by 0.3 K. What is (triangle sign)E, including the
sign, for the combustion of this piece of choco-
late cake? Assume no heat is absorbed by the
calorimeter. The heat capacity of water is
1.0 cal/g · K and the heat of vaporization of
water is 540 cal/g.
Answer in units of kcal.