#1: which of the following is the abbreviation for a unit of energy? a. k / b. °c/ c. w / d. #2: a 200 g block of a substance requires 1.84 kj of heat to raise its temperature from 25°c to 45°c. use the table attached to identify the substance. a. iron/ b. aluminum/ c. gold/ d. #3: in a calorimeter, the temperature of 100 g of water decreased by 10°c when 10 g of ice melted. how much heat was absorbed by the ice? a. 418 kj / b. 100 kj / c. 10 j / d. 4.18 kj #4: the amount of heat needed to raise the temperature of 50 g of a substance by 15°c is 1.83 kj. what is the specific heat of the substance? a. 2.44 j/g-°c / b. 2.22 j/g-°c / c. 2.13 j/g-°c / d. 2.05 j/g-°c #5: in a calorimeter, 3.34 kj of heat was absorbed when 10 g of ice melted. what is the enthalpy of fusion of the ice? a. 6.68 j/g / b. 334 j/g / c. 6.68 kj/g/ d. 334 kj/g