Chapter 4, Problem 4Q

Energy exists in different forms in our natural world. In Figure 5.10, identify where:

1. a. Potential (stored) energy of the fuel is converted to heat.
2. b. Kinetic energy of water molecules is converted to mechanical energy.
3. c. Mechanical energy is converted to electrical energy.
4. d. Electrical energy is converted into forms such as heat and light.

Interpretation Introduction

Interpretation:

Energy exists in different forms in our natural world. From the given figure of components of an electric power plant it has to be identified that where potential energy of the fuel is converted to heat.

Concept Introduction:

A fuel is a substance which releases energy in the form of heat while undergoing combustion. Hydrocarbons which have high heats of combustion make it a best fuel.

The general equation for the complete combustion of a hydrocarbon is written below,

${\text{\_ C}}_{\text{x}}{\text{H}}_{\text{y}}\text{+}{\text{\_ O}}_{\text{2}}\to \text{\_}{\text{CO}}_{\text{2}}\text{+}\text{\_}{\text{H}}_{\text{2}}\text{O}$

Coal is a good fuel becouse it is completely made up of carbon atoms. It is a fossil fuel.

Coals can be classified and graded according to the carbon percent and the impurity percent such as sulfur.

There different types of energy forms in the world and some of these energy forms are mentioned below,

Mechanical energy: Energy produced by a machine or a moving part.

Thermal energy: Energy produced by heat.

Light energy: Energy produced from light.

Potential energy: Energy stored in an object due to its position above the earth’s surface.

Kinetic energy: Energy produced by motion of an object.

Explanation of Solution

The given figure which depicts the components of an electric power plant is shown below,

Figure 1

Coal is a best fuel to produce heat energy, the steam produced through this process is used to generate electricity.

Energy exists in different forms in our world.

In the given representation, the fuel in the burner is a source of potential energy. When it burned, some of its potential energy is converted to heat throgh combustion. This heat is converted into kinetic energy of steams.

Interpretation Introduction

Interpretation:

Energy exists in different forms in our natural world. From the given figure of components of an electric power plant it has to be identified that where kinetic energy of water molecule is converted to mechanical energy.

Concept Introduction:

A fuel is a substance which releases energy in the form of heat while undergoing combustion. Hydrocarbons which have high heats of combustion make it a best fuel.

The general equation for the complete combustion of a hydrocarbon is written below,

${\text{\_ C}}_{\text{x}}{\text{H}}_{\text{y}}\text{+}{\text{\_ O}}_{\text{2}}\to \text{\_}{\text{CO}}_{\text{2}}\text{+}\text{\_}{\text{H}}_{\text{2}}\text{O}$

Coal is a good fuel becouse it is completely made up of carbon atoms. It is a fossil fuel.

Coals can be classified and graded according to the carbon percent and the impurity percent such as sulfur.

There different types of energy forms in the world and some of these energy forms are mentioned below,

Mechanical energy: Energy produced by a machine or a moving part.

Thermal energy: Energy produced by heat.

Light energy: Energy produced from light.

Potential energy: Energy stored in an object due to its position above the earth’s surface.

Kinetic energy: Energy produced by motion of an object.

Explanation of Solution

The given figure which depicts the components of an electric power plant is shown below,

Figure 1

Coal is a best fuel to produce heat energy, the steam produced through this process is used to generate electricity.

Energy exists in different forms in our world.

In the given representation, the fuel in the burner is a source of potential energy. When it burned, some of its potential energy is converted to heat throgh combustion. This heat is converted into kinetic energy of steams. By spinning the turbine, the kinetic energy of the steam is converted to mechanical energy.

Interpretation Introduction

Interpretation:

Energy exists in different forms in our world. From the given figure of components of an electric power plant it has to be identified that where mechanical energy is converted to electrical energy.

Concept Introduction:

A fuel is a substance which releases energy in the form of heat while undergoing combustion. Hydrocarbons which have high heats of combustion make it a best fuel.

The general equation for the complete combustion of a hydrocarbon is written below,

${\text{\_ C}}_{\text{x}}{\text{H}}_{\text{y}}\text{+}{\text{\_ O}}_{\text{2}}\to \text{\_}{\text{CO}}_{\text{2}}\text{+}\text{\_}{\text{H}}_{\text{2}}\text{O}$

Coal is a good fuel becouse it is completely made up of carbon atoms. It is a fossil fuel.

Coals can be classified and graded according to the carbon percent and the impurity percent such as sulfur.

There different types of energy forms in the world and some of these energy forms are mentioned below,

Mechanical energy: Energy produced by a machine or a moving part.

Thermal energy: Energy produced by heat.

Light energy: Energy produced from light.

Potential energy: Energy stored in an object due to its position above the earth’s surface.

Kinetic energy: Energy produced by motion of an object.

Explanation of Solution

The given figure which depicts the components of an electric power plant is shown below,

Figure 1

Coal is a best fuel to produce heat energy, the steam produced through this process is used to generate electricity.

Energy exists in different forms in our world.

In the given representation, the fuel in the burner is a source of potential energy. When it burned, some of its potential energy is converted to heat throgh combustion. This heat is converted into kinetic energy of steams. By spinning the turbine, the kinetic energy of the steam is converted to mechanical energy. The mechanical energy generated from the spinning turbne is converted to electrical energy by rotating a wire in a magnetic field.

Interpretation Introduction

Interpretation:

Energy exists in different forms in our world. From the given figure of components of an electric power plant it has to be identified that where electrical energy is converted into forms such as heat and light.

Concept Introduction:

A fuel is a substance which releases energy in the form of heat while undergoing combustion. Hydrocarbons which have high heats of combustion make it a best fuel.

The general equation for the complete combustion of a hydrocarbon is written below,

${\text{\_ C}}_{\text{x}}{\text{H}}_{\text{y}}\text{+}{\text{\_ O}}_{\text{2}}\to \text{\_}{\text{CO}}_{\text{2}}\text{+}\text{\_}{\text{H}}_{\text{2}}\text{O}$

Coal is a good fuel becouse it is completely made up of carbon atoms. It is a fossil fuel.

Coals can be classified and graded according to the carbon percent and the impurity percent such as sulfur.

There different types of energy forms in the world and some of these energy forms are mentioned below,

Mechanical energy: Energy produced by a machine or a moving part.

Thermal energy: Energy produced by heat.

Light energy: Energy produced from light.

Potential energy: Energy stored in an object due to its position above the earth’s surface.

Kinetic energy: Energy produced by motion of an object.

Explanation of Solution

The given figure which depicts the components of an electric power plant is shown below,

Figure 1

Coal is a best fuel to produce heat energy, the steam produced through this process is used to generate electricity.

Energy exists in different forms in our world.

In the given representation, the fuel in the burner is a source of potential energy. When it burned, some of its potential energy is converted to heat throgh combustion. This heat is converted into kinetic energy of steams. By spinning the turbine, the kinetic energy of the steam is converted to mechanical energy. The mechanical energy generated from the spinning turbne is converted to electrical energy by rotating a wire in a magnetic field. This electrical energy, carried to the city by the power lines, light bulbs and heats homes.