Français
3. Transformations of a chemical system
A closed thermodynamic system can only undergo a cycle of transformations, i.e. go from an initial state (1) to a state (2) then to a state (3) etc., then back to the initial state (1), if it is susceptible to interactions with another system or with the external environment. These interactions are highly variable and characteristic of the study.
3.1 The thermoelastic model
The thermoelastic model, designed to represent chemical systems, is based on the assumption that the interactions of these systems with the external environment or with another system are exclusively transfers of matter and/or heat through its envelope and the actions of surface forces exerted on the latter, leading to variations in its volume V.
The Ultimate Scientific and Technical Reference
This article is included in
Physics and chemistry
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Transformations of a chemical system
First principle of thermodynamics
