The current energy sources and their approximate percentages of total energy use are to be determined. Concept introduction: The power generated by utilizing the chemical or physical resources for providing heat and light or for carrying out various processes is known as energy. The SI unit of energy is joule. According to the law of conservation of energy, energy can neither be created nor be destroyed; it can only be converted from one form to another.

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Chapter 9, Problem 16E

Interpretation Introduction

Interpretation:

The current energy sources and their approximate percentages of total energy use are to be determined.

Concept introduction:

The power generated by utilizing the chemical or physical resources for providing heat and light or for carrying out various processes is known as energy.

The SI unit of energy is joule. According to the law of conservation of energy, energy can neither be created nor be destroyed; it can only be converted from one form to another.

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