# ?PVT data may be taken by the following procedure: A mass m of a substance of molar mass

**Chapter 3, Problem 3.74**

(choose chapter or problem)

PVT data may be taken by the following procedure: A mass m of a substance of molar mass ℳ is introduced into a thermostated vessel of known total volume \(V^{t}\). The system is allowed to equilibrate, and the temperature T and pressure P are measured.

(a) Approximately what percentage errors are allowable in the measured variables (m, ℳ, Vt, T, and P) if the maximum allowable error in the calculated compressibility factor Z is ±1%?

(b) Approximately what percentage errors are allowable in the measured variables if the maximum allowable error in calculated values of the second virial coefficient B is ±1%? Assume that Z ≃ 0.9 and that values of B are calculated by Eq. (3.37).

Text Transcription:

V^t

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