This equation has four variables: p refers to the pressure of ideal gas, v refers to the volume of ideal gas, n refers to the amount of gas substances, and t refers to the thermodynamic temperature of ideal gas; There is also a constant: r is the ideal gas constant.
It can be seen that there are many variables in this equation. Therefore, this equation is famous for its many variables and wide application range, and it is also approximately applicable to air at normal temperature and pressure.
Extended data:
By studying the behavior of gas at low pressure, the state equation of ideal gas is derived. However, there are some deviations in the application of the ideal gas state equation for each gas. The lower the pressure, the smaller the deviation, and the ideal gas state equation can describe the behavior of gas more accurately at very low pressure.
Extremely low pressure means that the distance between molecules is very large, and the interaction between molecules is very small at this time; It also means that the volume occupied by the molecule itself can be ignored compared with the gas with very large volume at this time, so the molecule can be approximately regarded as a particle without volume.
Therefore, the concept of ideal gas is abstractly put forward from the behavior trigger of extremely low pressure gas.
References:
Baidu encyclopedia-ideal gas state equation