Chapter 15, Problem 77AP

(a)

Interpretation Introduction

Interpretation:

The number of years before which all the energy stored in earth will be gone should be calculated.

Concept introduction:

The method of minimizing the energy input is termed as recoverable energy. In this exchange of energy from one sub-system of the whole system with another takes place.The recovery of energy exchange thermal energy in either sensible or latent form.

(b)

Interpretation Introduction

Interpretation:

If all the countries throughout the world consumed energy at the same per capita rate as the United States, number of years before which all the energy stored in earth will be gone should be calculated.

Concept introduction:

The method of minimizing the energy input is termed as recoverable energy. In this exchange of energy from one sub-system of the whole system with another takes place. The recovery of energy exchange thermal energy in either sensible or latent form.

(c)

Interpretation Introduction

Interpretation:

The answers in part (a) and part (b) should be compared.

Concept introduction:

The method of minimizing the energy input is termed as recoverable energy. In this exchange of energy from one sub-system of the whole system with another takes place. The recovery of energy exchange thermal energy in either sensible or latent form.