Calorimeter basic parts Ilustración e icono

A cutaway diagram depicts a laboratory calorimeter featuring an insulated cylindrical vessel with a water jacket, a mechanical stirrer, a suspended inner crucible holding a red sample, electrical leads, and a thermometer or temperature probe inserted through the lid. The hierarchy shown is the sample within a crucible inside the reaction chamber immersed in the calorimetric fluid. In thermochemistry and calorimetry, this laboratory instrument measures heat transfer and enthalpy change (ΔH) of chemical reactions by monitoring temperature under controlled mixing.