Answer:
B. bomb calorimeter
Step-by-step explanation:
The bomb calorimeter is an insulated device that is designed to measure the amount of heat that goes off or is absorbed in a reaction. The device is made in such a way that its internal temperature remains constant. A water bath is placed in the device and heat change in the water bath, the stainless steel and thermometer inside the bomb calorimeter, as well as the actual heat change that occur as a result of the reaction, are all measured to determine the true calorie content of the substance being measured.
A calorie is the amount of energy that is needed to increase the temperature of 1 gram of water by 1 degree celsius. The bomb calorimeter is used to measure the number of calories contained in packaged foods. So Digby can use this device to determine how many calories are in his bag of chips.