Thermodynamic Contacts: Temperature and pressure are defined by the surrounding area

1.10 Thermodynamic Contacts: Temperature and pressure are defined by the surrounding area

S2: The world, a heat bath, ...
Exchange of heat energy \(\Delta Q\)
and pressure work \(\Delta W\)

\(T_{1}\)
\(p_{1}\)
fixed particle number \(N\)

Controlled by the system:

\(V\): volume
\(\mu\): chemical potential
\(S\): entropy

\(\Rightarrow\) State\((p,N,T)\)

Examples:

Gas a fixed pressure
Chemical reactions in an open chamber cooled in a heat bath

© J. Carstensen (Stat. Meth.)