Chapter 12: Problem 13

When you drive a car on hot roads, the oressure in the tires increases. Explain.

Short Answer

Expert verified

The pressure in car tires increases when driven on hot roads due to the rise in temperature of the air within the tires, which increases the movement of the air molecules. This, in turn, leads to the air molecules colliding with the tire walls with more force, thereby increasing the pressure.

Step by step solution

Understanding Basic Principles

First, recognize that the condition of a car's tire can be described using the Ideal Gas Law, which states that the pressure of a gas is directly proportional to its temperature and inversely proportional to its volume, provided the amount of gas stays constant. Therefore, when the temperature increases in the closed system of a tire, the pressure also increases, given that the volume of the tire doesn't significantly change. This happens because the molecules of air inside the tire move more rapidly at higher temperatures, impacting the walls of the tire with greater force and thus increasing pressure.

Applying Principles to The Exercise

When a car is driven on hot roads, the temperature of the air inside the tires increases due to heat conduction from the road. As the rubber on the tire isn't a perfect insulator, the heat from the road is transferred to the air inside it. As mentioned, with the increasing temperature, the molecules inside the tire move faster and hit the tire walls with more force, causing an increase in tire pressure.

Conclusion

Therefore, it can be concluded that the rise in temperature of the air within the tire because of a hot road is responsible for the increase in tire pressure. A driver must be aware of this, especially during hot summer months, to prevent excessive tire pressure which can lead to hazardous situations.

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When you drive a car on hot roads, the oressure in the tires increases. Explain.

Short Answer

Step by step solution

Understanding Basic Principles

Applying Principles to The Exercise

Conclusion

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