define the term calorimetry, calories, principal of calorimetry ?
Answers
Calorimetry
It is the act of measuring the heat of chemical reactions or physícal changes or the science performing such measurements. Calorimetry is performed with a calorimeter heat is measured by thermometer. The theme of calorimetry is "during a thermal change heat lost by hotter body is equal to heat gained by colder one."
Calories
Amount of heat required to raise the temperature of 1 g of water from 14.5°C to 15.5°C at atmospheric pressure is called 1 calorie, it is also called international calorie.
1 kilocalorie 10^3 calorie and 1 Joule= 42 calorie.
Principle of Calorimetry
When two bodies of different temperatures are kept in contact, then flow of heat between them takes place from the body at higher temperature the body at lower temperature. This flow continues till both the bodies attain the same temperature.
Explanation:
Calorimetry is the science or act of measuring changes in state variables of a body for the purpose of deriving the heat transfer associated with changes of its state due, for example, to chemical reactions, physical changes, or phase transitions under specified constraints. Calorimetry is performed with a calorimeter.