Noun
That branch of chemical science which includes the investigation of the various relations existing between chemical action and that manifestation of force termed heat, or the determination of the heat evolved by, or employed in, chemical actions.
Source: Webster's dictionaryIn addition to this, in 1780 Antoine Lavoisier and Pierre-Simon Laplace laid the foundations of thermochemistry by showing that the heat given out in a reaction is equal to the heat absorbed in the reverse reaction. Source: Internet
In thermochemistry the Stefan–Boltzmann constant is often expressed in cal cm −2 day −1 −4 : :σ ≈ main. Source: Internet
Systems Several thermodynamic definitions are very useful in thermochemistry. Source: Internet
Therefore, it is used in thermochemistry as the standard state for defining the heat of formation of carbon compounds. Source: Internet
These experiments mark the foundation of thermochemistry. Source: Internet