A Calorimeter<\/strong> is a device used to measure the heat flow of a chemical reaction or physical change. The process of measuring this heat is called calorimetry. <\/p>\n\n\n\n Additionally, a\u00a0calorimeter<\/strong>\u00a0is a device useful for heat measurements necessary for calorimetry. <\/p>\n\n\n\n It mainly consists of a metallic vessel of materials that are good conductors of electricity like copper and aluminium etc. Moreover, there is also a facility for stirring the contents of the vessel.<\/p>\n\n\n\n A basic calorimeter consists of a metal container of water above a combustion chamber, in addition a thermometer is useful to measure the change in water temperature. <\/p>\n\n\n\n In addition, Modern calorimeters<\/strong> operate in the temperature range of 0.1 to 3500 Kelvin and measures the amount of heat with an accuracy of 0.01-10%.<\/p>\n\n\n\n The basic principle is therefore the heat release by the combustion chamber increases the temperature of the water in a measurable way. <\/p>\n\n\n\n However the temperature change may be used to calculate the enthalpy change per mole of substance A substances A and B are reacted.<\/p>\n\n\n\n The equation used is therefore :<\/p>\n\n\n\n q = Cv(Tf – Ti )<\/p>\n\n\n\n where:<\/p>\n\n\n\n In addition, the principle of calorimetry indicates the law of conservation energy, it means the total heat<\/strong> lost by the hot body is equal to the total heat<\/strong> gained by the cold body<\/p>\n\n\n\n