Answer:
Explanation:
A calorimeter is an instrument used to measure the amount of heat transferred from or to an object. In a calorimeter, the law of conservation of energy is observed; which states that energy can neither be created nor destroyed but can be transformed from one form to another. Hence, calorimeter uses this law to form the principle of calorimetry which is described as the total amount of heat lost by an object/body is equal to the total amount of heat gained by another object/body. In order for this to occur, when two bodies are placed in physical contact with one another, the body that transfers heat must have a higher temperature than the other body so as to achieve thermal equilibrium between them.