Final answer:
Calorimetry is a technique used to measure the amount of heat involved in a chemical or physical process. It involves using a calorimeter to exchange heat with a substance and measuring the resulting temperature change. This technique requires defining both the system undergoing the change and its surroundings.
Step-by-step explanation:
One technique we can use to measure the amount of heat involved in a chemical or physical process is known as calorimetry. Calorimetry is used to measure amounts of heat transferred to or from a substance. To do so, the heat is exchanged with a calibrated object (calorimeter).
The temperature change measured by the calorimeter is used to derive the amount of heat transferred by the process under study. The measurement of heat transfer using this approach requires the definition of a system (the substance or substances undergoing the chemical or physical change) and its surroundings (all other matter, including components of the measurement apparatus, that serve to either provide heat to the system or absorb heat from the system).