The calorimeter is calibrated to check that the thermometer is working properly. Therefore, option (C) is correct.
A calorimeter can be described as a device that can measure the heat released or absorbed in a chemical reaction. In a calorimeter, a thermometer is placed through the small opening to measure the temperature. Calibrating a calorimeter is a relatively simple process.
The technique used to measure the amount of heat involved in a process is called calorimetry. The heat is exchanged with a calibrated object and the change in temperature of the calorimeter is converted into the amount of heat.
The measurement of heat transfer using this approach requires the definition of a system and its surroundings. Bomb calorimeters need calibration to find the heat capacity of the calorimeter and ensure accurate results. The calibration is performed each time before the calorimeter is used.
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