Chapter 15, Problem 92A

Interpretation Introduction

Interpretation: To give the role of surfactant in firefighting.

Concept Introduction: The substance that is used for reducing surface tension is known as a surfactant. They can act as emulsifiers, foaming agents, wetting agents, or dispersants.

Answer to Problem 92A

A surfactant behaves as a wetting agent it is used to wet fires, as a result, the requirement of water is less in order to put out the fire.

Explanation of Solution

When a surfactant is added to the water, it helps to wet the burning materials. When water is used for stopping fires, it does not soak in rather it makes the environment more polluted.

A surfactant behaves as a wetting agent it is used to wet fires, as a result, the requirement of water is less in order to put out the fire. Thus, less water carries pollutants to the environment.

Conclusion

Thus, surfactant with water helps in making the environment less polluted in firefighting.