Chapter 9, Problem 43E

Interpretation Introduction

Interpretation:

The useful energy (in kilojoules) derived and the energy (in kilojoules) consumed in the given energy transfer processes are to be calculated.

Concept introduction:

The power derived from the utilization of chemical or physical resources to provide heat and light or to carry out various processes is known as energy. The SI unit of energy is joule.

Unit conversion is a multiple-step process that is used to convert the unit of measurement of a given quantity. It is determined by multiplication with a conversion factor.

The useful energy derived can be calculated by using the equation:

$\text{Total consumed}\times \text{efficency}=\text{useful energy}$