Thermal quantities of some cycloparaffins. Part III. results of measurements

This part of the investigation was performed in collaboration with Mr.J. J.Engelsman.

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\documentclass{article}\pagestyle{empty}\begin{document}$ \left. {\Delta {\rm H}} \right|_{\rm o}^{\rm p} = 0.585\frac{{{\rm pT}_{\rm c} }}{{{\rm p}_{\rm c} }}\left({1 - 18\frac{{{\rm T}_{\rm c}^{\ \ 2} }}{{{\rm T}^2 }}} \right){\rm j}/{\rm mol}. $\end{document} as derived from the modified Berthelot equation of state and the thermodynamic relation:\documentclass{article}\pagestyle{empty}\begin{document}$$ \left({\frac{{\partial {\rm H}}}{{\partial {\rm p}}}} \right)_{\rm T} = {\rm V} - {\rm T}\left({\frac{{\partial {\rm V}}}{{\partial {\rm T}}}} \right)_{\rm p} $$\end{document}

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The slightly higher value of the N.B.S. for cyclohexane might be commented upon in view of the discrepancy in the values for the melting point of this compound (see š 1) although the difference is not outside the limits of our combined uncertainties.

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