Document Type


Date of Award


Degree Name

Master of Science in Chemical Engineering - (M.S.)


Chemical Engineering

First Advisor

George C. Keeffe

Second Advisor

C. L. Mantell


The effect of pressure and temperature on the isobaric heat capacity and the heat capacity at constant volume for nitric oxide relative to the ideal gas state is presented. Results are reported for pressures ranging from 0 to 6000 PSIA. and for temperatures ranging from 300 to 1800°R.

Based on the Benedict-Webb-Rubin equation of state, an equation was derived for the deviation of isobaric heat capacity from the ideal gas state. Graphs and tables relating the isobaric heat capacity and the deviation of heat capacity at constant volume to pressure and temperature for nitric oxide are included.

The results show that the effect of pressure on the isobaric heat, capacity must be considered in thermal calculations, since a considerable error is introduced if the pressure effect is neglected. If the effect of pressure is neglected, the greatest error 'would occur near the critical point.

Also included is a comparison of the calculated data with those of Opfell, Schlinger and Sage.



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