Thiele hard sphere equation of state
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The Thiele hard sphere equation of state is an equation of state for a hard sphere fluid developed by Thiele in 1963. The equation provides a better approximation of the repulsive forces between molecules than the Van der Waals repulsive term. The equation is given below:
Failed to parse (Conversion error. Server ("https://wikimedia.org/api/rest_") reported: "Cannot get mml. Server problem."): {\displaystyle Z_{hs}={\frac {p_{hs}V_{m}}{RT}}={\frac {1-\eta ^{3}}{(1-\eta )^{4}}}={\frac {1+\eta +\eta ^{2}}{(1-\eta )^{3}}}} ,
where:
- is the compressibility factor of the hard sphere fluid;
- is the pressure of the fluid;
- 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 V_m} is the molar volume of the fluid;
- 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 T} is the absolute temperature of the fluid;
- 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 R} is the gas constant; and
- 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 \eta} is the packing fraction of the fluid.
