Chapter 3, Problem 3.50P

(a)

Interpretation Introduction

Interpretation:

The $Z\text{and }V$ value for steam must calculate at ${250}^{\circ }\text{C}$ temperature and $1800\text{kPa}$ pressure by the truncated virial equation with given virial coefficients.

Concept Introduction:

The value of $Z$ is easily calculated by the given truncated virial equation and value of $V$ is find out by $PV=ZnRT$ .

(b)

Interpretation Introduction

Interpretation:

The $Z\text{and }V$ value for steam must calculate at ${250}^{\circ }\text{C}$ temperature and $1800\text{kPa}$ pressure by the truncated virial equation with a value of $B$ virial coefficient from generalized Pitzer correlation.

Concept Introduction:

In order to find value of $Z$ from given truncated virial equation, first we calculate $B$ virial coefficient from generalized Pitzer correlation and then value of $V$ followed by value of $Z$ find out by $PV=ZnRT$ .

(c)

Interpretation Introduction

Interpretation:

The $Z\text{and }V$ value for steam must calculate at ${250}^{\circ }\text{C}$ temperature and $1800\text{kPa}$ pressure by steam tables.

Concept Introduction:

From Appendix E, write down the specific volume which is given in $\frac{{\text{cm}}^3}{\text{gm}}$ at corresponding given temperature and pressure ( ${250}^{\circ }\text{C}$ temperature and $1800\text{kPa}$ pressure) and convert it in form of $\frac{{\text{cm}}^3}{\text{mol}}$ using molecular weight of steam that is water.