Chapter 8, Problem 8.2P

(a)

Interpretation Introduction

Interpretation:

The pressures at states 1, 2, 3 and 4.

Concept Introduction :

Given $T_H=475K$ and $T_C=300K$

Therefore, the temperature at states 1 and 2 are $T_H=475K$ and the temperature at states 3 and 4 are $T_C=300K$ .

We use the given values to calculate the other parameters at the different states.

(b)

Interpretation Introduction

Interpretation:

The quality at states 3 and 4.

Concept Introduction :

Given $T_H=475K$ and $T_C=300K$

Therefore, the temperature at states 1 and 2 are $T_H=475K$ and the temperature at states 3 and 4 are $T_C=300K$ .

We use the given values to calculate the other parameters at the different states.

(c)

Interpretation Introduction

Interpretation:

The rate of heat addition.

Concept Introduction :

Given $T_H=475K$ and $T_C=300K$

Therefore, the temperature at states 1 and 2 are $T_H=475K$ and the temperature at states 3 and 4 are $T_C=300K$ .

We use the given values to calculate the other parameters at the different states.

(d)

Interpretation Introduction

Interpretation:

The rate of heat rejection.

Concept Introduction:

Given $T_H=475K$ and $T_C=300K$

Therefore, the temperature at states 1 and 2 are $T_H=475K$ and the temperature at states 3 and 4 are $T_C=300K$ .

We use the given values to calculate the other parameters at the different states.

(e)

Interpretation Introduction

Interpretation:

The mechanical power for each of the four steps.

Concept Introduction:

Given $T_H=475K$ and $T_C=300K$

Therefore, the temperature at states 1 and 2 are $T_H=475K$ and the temperature at states 3 and 4 are $T_C=300K$ .

We use the given values to calculate the other parameters at the different states.

(f)

Interpretation Introduction

Interpretation:

The thermal efficiency $\eta$ of the cycle.

Concept Introduction:

Given $T_H=475K$ and $T_C=300K$

Therefore, the temperature at states 1 and 2 are $T_H=475K$ and the temperature at states 3 and 4 are $T_C=300K$ .

We use the given values to calculate the other parameters at the different states.