PV nRTEq

for the sample cell and:

for the calibrated reference cell. In these equations, P is the ambient pressure, Pa; V is the volume of the sealed empty sample cell, cm3; VR is volume of a carefully calibrated reference cell, cm3; n is moles of gas in the sample cell volume at P; nR is moles of gas in the reference cell volume at P; R is the gas constant; and T is ambient temperature, K.

A solid sample of volume (Vs) is then placed in the sample cell:

0 0

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