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Both NVT \cite{Glattli2002} and NPT \cite{Motakabbir1990, Pi2009} molecular dynamics simulations of SPC/E water have yielded values for the isothermal compressibility of water that agree well with experiment \cite{Fine1973}. The results of three different methods for computing the isothermal compressibility from Langevin Hull simulations for pressures between 1 and 6500 atm are shown in Fig. 5 along with compressibility values obtained from both other SPC/E simulations and experiment. Compressibility values from all references are for applied pressures within the range 1 - 1000 atm. |
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\begin{figure} |
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\includegraphics[width=\linewidth]{new_isothermal} |
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\includegraphics[width=\linewidth]{new_isothermalN} |
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\caption{Compressibility of SPC/E water} |
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\label{compWater} |
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\end{figure} |