3.7 Determination of Specific Heat of a Gas at Constant Pressure By Regnault's Method
Laplace and Lavoisier used this technique first. Then it was taken up by Regnault to measure the specific heat at constant pressure of a gas. The apparatus used by him is shown in Fig. 3.7.
Fig. 3.7 Regnault's experimental arrangement to measure Cp
Dry, pure, compressed experimental gas is kept in container A which is kept immersed in a constant temperatures bath B. T1T2, T3 are thermometers provided for recording the temperature of corresponding vessels. P1, P2, P3, P4 are taps to regulate the flow of experimental gas. M1, M2 are two manometers for recording ...
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