Chapter 5, Problem 5.85P

Interpretation Introduction

(a)

Interpretation:

To interpret the compressibility factor $z$ of nitrogen at $\text{40 °C and 40 MPa}$.

Concept introduction:

The expression of compressibility factor is given as follows:

$\begin{array}{l}{Z}_{m}nRT=P_{m}V\\ \\ n=\frac{P_{m}V}{Z_{m}R{T}_m}\\ \\ P_m=PressureofGas\\ T_m=TemperatureofGas\\ Z_m=DimensionlessCompressibilityFactor\\ n=NumberofmolesofGas\\ R=GasConstant\end{array}$

Interpretation Introduction

(b)

Interpretation:

To interpret the compressibility factor $z$ of helium at $-200°Cand\text{ 350}atm$.

Concept introduction:

The expression of compressibility factor is given as follows:

$\begin{array}{l}{Z}_{m}nRT=P_{m}V\\ \\ n=\frac{P_{m}V}{Z_{m}R{T}_m}\\ \\ P_m=PressureofGas\\ T_m=TemperatureofGas\\ Z_m=DimensionlessCompressibilityFactor\\ n=NumberofmolesofOxygenGas\\ R=GasConstant\end{array}$