Bridgman thermodynamic formulas

Notation used (from Table I):

• $p$ is the pressure.
• $T$ is the temperature (in Kelvin).
• $V$ is the volume.
• $S$ is the entropy.
• $Q$ is the heat.
• $W$ is the work.
• $U$ is the internal energy.
• $H$ is the enthalpy
• $G$ is the Gibbs energy function
• $A$ is the Helmholtz energy function.

Bridgman thermodynamic formulas

Table II

pressure

$\left.\partial T\right\vert _{p}=-\left.\partial p\right\vert _{T}=1$

$\left.\partial V\right\vert _{p}=-\left.\partial p\right\vert _{V}=\left.{\frac {\partial V}{\partial T}}\right\vert _{p}$

$\left.\partial S\right\vert _{p}=-\left.\partial p\right\vert _{S}=C_{p}/T$

$\left.\partial Q\right\vert _{p}=-\left.\partial p\right\vert _{Q}=C_{p}$

$\left.\partial W\right\vert _{p}=-\left.\partial p\right\vert _{W}=p\left.{\frac {\partial V}{\partial T}}\right\vert _{p}$

$\left.\partial U\right\vert _{p}=-\left.\partial p\right\vert _{U}=C_{p}-p\left.{\frac {\partial V}{\partial T}}\right\vert _{p}$

$\left.\partial H\right\vert _{p}=-\left.\partial p\right\vert _{H}=C_{p}$

$\left.\partial G\right\vert _{p}=-\left.\partial p\right\vert _{G}=-S$

$\left.\partial A\right\vert _{p}=-\left.\partial p\right\vert _{A}=-\left(S+p\left.{\frac {\partial V}{\partial T}}\right\vert _{p}\right)$

temperature

$\left.\partial V\right\vert _{T}=-\left.\partial T\right\vert _{V}=-\left.{\frac {\partial V}{\partial p}}\right\vert _{T}$

$\left.\partial S\right\vert _{T}=-\left.\partial T\right\vert _{S}=\left.{\frac {\partial V}{\partial T}}\right\vert _{p}$

$\left.\partial Q\right\vert _{T}=-\left.\partial T\right\vert _{Q}=T\left.{\frac {\partial V}{\partial T}}\right\vert _{p}$

$\left.\partial W\right\vert _{T}=-\left.\partial T\right\vert _{W}=-p\left.{\frac {\partial V}{\partial p}}\right\vert _{T}$

$\left.\partial U\right\vert _{T}=-\left.\partial T\right\vert _{U}=T\left.{\frac {\partial V}{\partial T}}\right\vert _{p}+p\left.{\frac {\partial V}{\partial p}}\right\vert _{T}$

$\left.\partial H\right\vert _{T}=-\left.\partial T\right\vert _{H}=-V+T\left.{\frac {\partial V}{\partial T}}\right\vert _{p}$

$\left.\partial G\right\vert _{T}=-\left.\partial T\right\vert _{G}=-V$

$\left.\partial A\right\vert _{T}=-\left.\partial T\right\vert _{A}=p\left.{\frac {\partial V}{\partial p}}\right\vert _{T}$

volume

$\left.\partial S\right\vert _{V}=-\left.\partial V\right\vert _{S}=1/T\left(C_{p}\left.{\frac {\partial V}{\partial p}}\right\vert _{T}+T\left.\left({\frac {\partial V}{\partial T}}\right)^{2}\right\vert _{p}\right)$

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \left. \partial Q \right\vert_V = - \left. \partial V \right\vert_Q = C_p\left. \frac{\partial V}{\partial p} \right\vert_T + T\left. \left( \frac{\partial V}{\partial T} \right)^2 \right\vert_p }

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \left. \partial W \right\vert_V = - \left. \partial V \right\vert_W = 0 }

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \left. \partial U \right\vert_V = - \left. \partial V \right\vert_U = C_p\left. \frac{\partial V}{\partial p} \right\vert_T + T\left. \left( \frac{\partial V}{\partial T} \right)^2 \right\vert_p }

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \left. \partial H \right\vert_V = - \left. \partial V \right\vert_H = C_p\left. \frac{\partial V}{\partial p} \right\vert_T + T\left. \left( \frac{\partial V}{\partial T} \right)^2 \right\vert_p - V\left. \frac{\partial V}{\partial T} \right\vert_p }

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \left. \partial G \right\vert_V = - \left. \partial V \right\vert_G = - \left( V \left. \frac{\partial V}{\partial T} \right\vert_p + S\left. \frac{\partial V}{\partial p} \right\vert_T \right) }

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \left. \partial A \right\vert_V = - \left. \partial V \right\vert_A = -S\left. \frac{\partial V}{\partial p} \right\vert_T }

entropy

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \left. \partial Q \right\vert_S = - \left. \partial S \right\vert_Q = 0 }

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \left. \partial W \right\vert_S = - \left. \partial S \right\vert_W = -(p/T) \left( C_p\left. \frac{\partial V}{\partial p} \right\vert_T + T\left. \left( \frac{\partial V}{\partial T} \right)^2 \right\vert_p \right) }

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \left. \partial U \right\vert_S = - \left. \partial S \right\vert_U = (p/T) \left( C_p\left. \frac{\partial V}{\partial p} \right\vert_T + T\left. \left( \frac{\partial V}{\partial T} \right)^2 \right\vert_p \right) }

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \left. \partial H \right\vert_S = - \left. \partial S \right\vert_H = -VC_p/T }

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \left. \partial G \right\vert_S = - \left. \partial S \right\vert_G = -(1/T) \left( VC_p -ST\left. \frac{\partial V}{\partial T} \right\vert_p \right) }

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \left. \partial A \right\vert_S = - \left. \partial S \right\vert_A = (1/T) \left( p\left( C_p \left. \frac{\partial V}{\partial p} \right\vert_T + T\left. \left( \frac{\partial V}{\partial T} \right)^2 \right\vert_p \right) + ST\left. \frac{\partial V}{\partial T} \right\vert_p \right) }

heat

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \left. \partial W \right\vert_Q = - \left. \partial Q \right\vert_W = -p \left( C_p\left. \frac{\partial V}{\partial p} \right\vert_T + T\left. \left( \frac{\partial V}{\partial T} \right)^2 \right\vert_p \right) }

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \left. \partial U \right\vert_Q = - \left. \partial Q \right\vert_U = p \left( C_p\left. \frac{\partial V}{\partial p} \right\vert_T + T\left. \left( \frac{\partial V}{\partial T} \right)^2 \right\vert_p \right) }

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \left. \partial H \right\vert_Q = - \left. \partial Q \right\vert_H = -VC_p }

See also

• Thermodynamic relations
• Maxwell's relations