Chapter 5, Problem 119IE

(a)

Interpretation Introduction

To determine:

Quads of energy in $5.81\times {10}^{17}\text{kJ}$ .

(b)

Interpretation Introduction

To determine:

The moles of ${\text{CH}}_{\text{4}}\left(g\right)$ that need to be combusted to provide the U.S. energy demand.

(c)

Interpretation Introduction

To determine:

Kilograms of ${\text{CO}}_{\text{2}}\left(g\right)$ generated in the combustion in part (b).

(d)

Interpretation Introduction

To determine:

If the photosynthesis is an adequate means to maintain a stable level of ${\text{CO}}_{\text{2}}\left(g\right)$ in the atmosphere.