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

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

S2: The world, a heat bath, ...
Exchange of heat energy $Δ Q$
and pressure work $Δ W$

$T_{1}$
$p_{1}$
fixed particle number $N$

Controlled by the system:

$V$ : volume
$μ$ : 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

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