Question

can anybody explain spontaneity and calorimetry

Answer 1

A calorimeter is a device that carefully measures the temperature of an isolated system both before and after a reaction takes place

Answer 2

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.