Why air pressure in a car tyre increases during driving?
I believe it has to do with the friction that occurs as a result of driving.
Friction causes heat, and once the air molecules are heated, they increase the pressure in the tyre by striking its walls with a greater force per unit area.
Hi Arora, thank you so much you have corrected my answer and also gave answer of my question. Thank you so much for your help.
The air pressure in a car tire increases during driving due to the combined effects of temperature and the motion of the vehicle. As the tire rolls along the road, it generates heat through friction. This heat causes the air inside the tire to expand, leading to an increase in pressure.
To understand why this happens, we can look at the properties of gases. According to the ideal gas law, the pressure of a gas is directly proportional to its temperature. When the temperature of a gas increases, its molecules move faster and collide with the walls of the container more frequently and with greater force. This results in an increase in pressure.
Now, imagine a car tire in motion. As the tire rolls on the road, there is constant friction between the tire and the surface. This friction generates heat, causing the temperature of the air inside the tire to rise. As the temperature increases, the air molecules in the tire gain energy, move faster, and collide with each other more frequently. Consequently, the pressure inside the tire increases.
It is essential to monitor and maintain the correct tire pressure for safety and optimal performance. To check the tire pressure, you can use a tire pressure gauge. Simply remove the cap from the tire valve, firmly press the gauge onto the valve, and read the pressure displayed on the gauge. If the pressure is higher than the recommended level, you may need to release some air to bring it back to the desired range. Conversely, if the pressure is too low, you will need to add air.
Remember, checking and adjusting the tire pressure when the tires are cold (e.g., before driving or after the car has been parked for a while) provides more accurate readings. Overinflated or underinflated tires can affect the vehicle's handling, fuel efficiency, and overall safety. Regularly monitoring and maintaining the correct tire pressure is an essential part of vehicle maintenance.