Gauge pressure means the pressure that would be shown on a standard pressure gauge. That would be relative to ambient pressure. For the calculation you need absolute pressure, so atmospheric pressure must be added.SmugBug said:Where is he getting that extra 101,000 that he is adding to the pressure??
The number of air molecules inside the tire can be calculated using the ideal gas law, which states that the number of molecules (n) is equal to the pressure (P) multiplied by the volume (V) divided by the gas constant (R) multiplied by the absolute temperature (T). This can be expressed as n = (PV)/(RT).
Yes, the size of the tire does affect the number of air molecules inside. The volume of the tire is a key factor in calculating the number of molecules, as seen in the ideal gas law equation. A larger tire will have a greater volume and therefore a higher number of air molecules compared to a smaller tire.
The type of gas used in the tire does not significantly affect the number of air molecules. The ideal gas law is based on the assumption that all gases behave in the same way, regardless of their composition. Therefore, the type of gas used in the tire does not impact the number of molecules, as long as the conditions (pressure, volume, temperature) remain constant.
Yes, the number of air molecules inside the tire can change over time. This is due to factors such as temperature changes, air leaks, and tire wear. As the tire heats up, the air molecules inside will gain energy and increase in volume, leading to a higher number of molecules. Air leaks and tire wear can also cause a decrease in the number of molecules by allowing some of the air to escape.
No, it is not possible to accurately count the number of air molecules inside the tire. The ideal gas law provides a way to calculate an estimated number, but it is difficult to measure the exact pressure, volume, and temperature inside the tire. In addition, the number of molecules is constantly changing due to external factors, making it impossible to get an exact count.